Search a number
145948755457 is a prime number
BaseRepresentation
bin1000011111101100111…
…0010100011000000001
3111221201102022222010101
42013323032110120001
54342400340133312
6151014204202401
713354513644451
oct2077316243001
9457642288111
10145948755457
11569952a416a
1224351b39401
13109bc15803b
1470c76dbd61
153be30d5a57
hex21fb394601

145948755457 has 2 divisors, whose sum is σ = 145948755458. Its totient is φ = 145948755456.

The previous prime is 145948755451. The next prime is 145948755461. The reversal of 145948755457 is 754557849541.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144950764176 + 997991281 = 380724^2 + 31591^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145948755457 is a prime.

It is not a weakly prime, because it can be changed into another prime (145948755451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72974377728 + 72974377729.

It is an arithmetic number, because the mean of its divisors is an integer number (72974377729).

Almost surely, 2145948755457 is an apocalyptic number.

It is an amenable number.

145948755457 is a deficient number, since it is larger than the sum of its proper divisors (1).

145948755457 is an equidigital number, since it uses as much as digits as its factorization.

145948755457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120000, while the sum is 64.

The spelling of 145948755457 in words is "one hundred forty-five billion, nine hundred forty-eight million, seven hundred fifty-five thousand, four hundred fifty-seven".