115581338 has 16 divisors (see below), whose sum is σ = 176565480. Its totient is φ = 56733696.

The previous prime is 115581329. The next prime is 115581341. The reversal of 115581338 is 833185511.

It can be written as a sum of positive squares in 4 ways, for example, as 95394289 + 20187049 = 9767^2 + 4493^2 .

It is a junction number, because it is equal to n+sod(n) for n = 115581298 and 115581307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31706 + ... + 35162.

Almost surely, 2^115581338 is an apocalyptic number.

115581338 is a deficient number, since it is larger than the sum of its proper divisors (60984142).

115581338 is a wasteful number, since it uses less digits than its factorization.

115581338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3761.

The product of its digits is 14400, while the sum is 35.

The square root of 115581338 is about 10750.8761503424. The cubic root of 115581338 is about 487.1124606234.

The spelling of 115581338 in words is "one hundred fifteen million, five hundred eighty-one thousand, three hundred thirty-eight".