115113531 has 8 divisors (see below), whose sum is σ = 165291280. Its totient is φ = 70839072.

The previous prime is 115113529. The next prime is 115113539. The reversal of 115113531 is 135311511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 115113531 - 2¹ = 115113529 is a prime.

It is a super-2 number, since 2×115113531² = 26502250038575922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115113498 and 115113507.

It is not an unprimeable number, because it can be changed into a prime (115113539) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1475776 + ... + 1475853.

It is an arithmetic number, because the mean of its divisors is an integer number (20661410).

Almost surely, 2^115113531 is an apocalyptic number.

115113531 is a deficient number, since it is larger than the sum of its proper divisors (50177749).

115113531 is a wasteful number, since it uses less digits than its factorization.

115113531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951645.

The product of its digits is 225, while the sum is 21.

The square root of 115113531 is about 10729.0973991292. The cubic root of 115113531 is about 486.4543879874.

The spelling of 115113531 in words is "one hundred fifteen million, one hundred thirteen thousand, five hundred thirty-one".