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145211637271 is a prime number
BaseRepresentation
bin1000011100111101001…
…0011011111000010111
3111212211001022111001211
42013033102123320113
54334343134343041
6150413113202251
713330323360031
oct2071722337027
9455731274054
10145211637271
1156647202388
1224187100387
1310902520a2c
147057860c51
153b9d530481
hex21cf49be17

145211637271 has 2 divisors, whose sum is σ = 145211637272. Its totient is φ = 145211637270.

The previous prime is 145211637257. The next prime is 145211637287. The reversal of 145211637271 is 172736112541.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 145211637271 - 231 = 143064153623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (145211637371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72605818635 + 72605818636.

It is an arithmetic number, because the mean of its divisors is an integer number (72605818636).

Almost surely, 2145211637271 is an apocalyptic number.

145211637271 is a deficient number, since it is larger than the sum of its proper divisors (1).

145211637271 is an equidigital number, since it uses as much as digits as its factorization.

145211637271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70560, while the sum is 40.

The spelling of 145211637271 in words is "one hundred forty-five billion, two hundred eleven million, six hundred thirty-seven thousand, two hundred seventy-one".