115157641 has 2 divisors, whose sum is σ = 115157642. Its totient is φ = 115157640.

The previous prime is 115157639. The next prime is 115157663. The reversal of 115157641 is 146751511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112254025 + 2903616 = 10595^2 + 1704^2 .

It is a cyclic number.

It is not a de Polignac number, because 115157641 - 2¹ = 115157639 is a prime.

It is a super-2 number, since 2×115157641² = 26522564561369762, which contains 22 as substring.

Together with 115157639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (115157611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57578820 + 57578821.

It is an arithmetic number, because the mean of its divisors is an integer number (57578821).

Almost surely, 2^115157641 is an apocalyptic number.

It is an amenable number.

115157641 is a deficient number, since it is larger than the sum of its proper divisors (1).

115157641 is an equidigital number, since it uses as much as digits as its factorization.

115157641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 31.

The square root of 115157641 is about 10731.1528271663. The cubic root of 115157641 is about 486.5165143731.

The spelling of 115157641 in words is "one hundred fifteen million, one hundred fifty-seven thousand, six hundred forty-one".