115607932981 has 2 divisors, whose sum is σ = 115607932982. Its totient is φ = 115607932980.

The previous prime is 115607932949. The next prime is 115607933011. The reversal of 115607932981 is 189239706511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62135532900 + 53472400081 = 249270^2 + 231241^2 .

It is a cyclic number.

It is not a de Polignac number, because 115607932981 - 2⁵ = 115607932949 is a prime.

It is a super-2 number, since 2×115607932981² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115607932901) 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, 57803966490 + 57803966491.

It is an arithmetic number, because the mean of its divisors is an integer number (57803966491).

Almost surely, 2^115607932981 is an apocalyptic number.

It is an amenable number.

115607932981 is a deficient number, since it is larger than the sum of its proper divisors (1).

115607932981 is an equidigital number, since it uses as much as digits as its factorization.

115607932981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 52.

The spelling of 115607932981 in words is "one hundred fifteen billion, six hundred seven million, nine hundred thirty-two thousand, nine hundred eighty-one".