115121338 has 4 divisors (see below), whose sum is σ = 172682010. Its totient is φ = 57560668.

The previous prime is 115121311. The next prime is 115121341. The reversal of 115121338 is 833121511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 83119689 + 32001649 = 9117^2 + 5657^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28780333 + ... + 28780336.

Almost surely, 2^115121338 is an apocalyptic number.

115121338 is a deficient number, since it is larger than the sum of its proper divisors (57560672).

115121338 is an equidigital number, since it uses as much as digits as its factorization.

115121338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57560671.

The product of its digits is 720, while the sum is 25.

The square root of 115121338 is about 10729.4612166688. The cubic root of 115121338 is about 486.4653848514.

Adding to 115121338 its reverse (833121511), we get a palindrome (948242849).

The spelling of 115121338 in words is "one hundred fifteen million, one hundred twenty-one thousand, three hundred thirty-eight".