115203530 has 16 divisors (see below), whose sum is σ = 223317864. Its totient is φ = 42536640.

The previous prime is 115203511. The next prime is 115203551. The reversal of 115203530 is 35302511.

It can be written as a sum of positive squares in 4 ways, for example, as 86248369 + 28955161 = 9287^2 + 5381^2 .

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, 442961 + ... + 443220.

Almost surely, 2^115203530 is an apocalyptic number.

115203530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115203530 is a deficient number, since it is larger than the sum of its proper divisors (108114334).

115203530 is a wasteful number, since it uses less digits than its factorization.

115203530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886201.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 115203530 is about 10733.2907349051. The cubic root of 115203530 is about 486.5811295426.

The spelling of 115203530 in words is "one hundred fifteen million, two hundred three thousand, five hundred thirty".