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145142142077 is a prime number
BaseRepresentation
bin1000011100101100100…
…1010101010001111101
3111212122012112202120202
42013023021111101331
54334222342021302
6150402151453245
713325520565112
oct2071311252175
9455565482522
10145142142077
1156610a56639
1224167987225
13108c0ccac0a
14704c530909
153b973a4202
hex21cb25547d

145142142077 has 2 divisors, whose sum is σ = 145142142078. Its totient is φ = 145142142076.

The previous prime is 145142142031. The next prime is 145142142083. The reversal of 145142142077 is 770241241541.

145142142077 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87420157561 + 57721984516 = 295669^2 + 240254^2 .

It is an emirp because it is prime and its reverse (770241241541) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 145142142077 - 224 = 145125364861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 145142142077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145142142017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72571071038 + 72571071039.

It is an arithmetic number, because the mean of its divisors is an integer number (72571071039).

Almost surely, 2145142142077 is an apocalyptic number.

It is an amenable number.

145142142077 is a deficient number, since it is larger than the sum of its proper divisors (1).

145142142077 is an equidigital number, since it uses as much as digits as its factorization.

145142142077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 145142142077 in words is "one hundred forty-five billion, one hundred forty-two million, one hundred forty-two thousand, seventy-seven".