115477131 has 32 divisors (see below), whose sum is σ = 192614400. Its totient is φ = 59784480.

The previous prime is 115477123. The next prime is 115477147. The reversal of 115477131 is 131774511.

It is not a de Polignac number, because 115477131 - 2³ = 115477123 is a prime.

It is a super-2 number, since 2×115477131² = 26669935567982322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115477151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86890 + ... + 88208.

It is an arithmetic number, because the mean of its divisors is an integer number (6019200).

Almost surely, 2^115477131 is an apocalyptic number.

115477131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115477131 is a deficient number, since it is larger than the sum of its proper divisors (77137269).

115477131 is a wasteful number, since it uses less digits than its factorization.

115477131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1719.

The product of its digits is 2940, while the sum is 30.

The square root of 115477131 is about 10746.0286152606. The cubic root of 115477131 is about 486.9660246682.

The spelling of 115477131 in words is "one hundred fifteen million, four hundred seventy-seven thousand, one hundred thirty-one".