115210057 has 6 divisors (see below), whose sum is σ = 116288718. Its totient is φ = 114141312.

The previous prime is 115210033. The next prime is 115210061. The reversal of 115210057 is 750012511.

It can be written as a sum of positive squares in 3 ways, for example, as 16088121 + 99121936 = 4011^2 + 9956^2 .

It is not a de Polignac number, because 115210057 - 2¹⁵ = 115177289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115210027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7033 + ... + 16729.

It is an arithmetic number, because the mean of its divisors is an integer number (19381453).

Almost surely, 2^115210057 is an apocalyptic number.

It is an amenable number.

115210057 is a deficient number, since it is larger than the sum of its proper divisors (1078661).

115210057 is an frugal number, since it uses more digits than its factorization.

115210057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915 (or 9806 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 115210057 is about 10733.5947846004. The cubic root of 115210057 is about 486.5903186564.

Adding to 115210057 its reverse (750012511), we get a palindrome (865222568).

The spelling of 115210057 in words is "one hundred fifteen million, two hundred ten thousand, fifty-seven".