115604557 has 2 divisors, whose sum is σ = 115604558. Its totient is φ = 115604556.

The previous prime is 115604551. The next prime is 115604561. The reversal of 115604557 is 755406511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103347556 + 12257001 = 10166^2 + 3501^2 .

It is an emirp because it is prime and its reverse (755406511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 115604557 - 2⁷ = 115604429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (115604551) 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, 57802278 + 57802279.

It is an arithmetic number, because the mean of its divisors is an integer number (57802279).

Almost surely, 2^115604557 is an apocalyptic number.

It is an amenable number.

115604557 is a deficient number, since it is larger than the sum of its proper divisors (1).

115604557 is an equidigital number, since it uses as much as digits as its factorization.

115604557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 34.

The square root of 115604557 is about 10751.9559615914. The cubic root of 115604557 is about 487.1450769238.

The spelling of 115604557 in words is "one hundred fifteen million, six hundred four thousand, five hundred fifty-seven".