113532131 has 4 divisors (see below), whose sum is σ = 114900072. Its totient is φ = 112164192.

The previous prime is 113532127. The next prime is 113532151. The reversal of 113532131 is 131235311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131235311 = 5779 ⋅22709.

It is a cyclic number.

It is not a de Polignac number, because 113532131 - 2² = 113532127 is a prime.

It is a super-2 number, since 2×113532131² = 25779089538802322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113532121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 683846 + ... + 684011.

It is an arithmetic number, because the mean of its divisors is an integer number (28725018).

Almost surely, 2^113532131 is an apocalyptic number.

113532131 is a deficient number, since it is larger than the sum of its proper divisors (1367941).

113532131 is an equidigital number, since it uses as much as digits as its factorization.

113532131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367940.

The product of its digits is 270, while the sum is 20.

The square root of 113532131 is about 10655.1457521706. The cubic root of 113532131 is about 484.2165137324.

Adding to 113532131 its reverse (131235311), we get a palindrome (244767442).

The spelling of 113532131 in words is "one hundred thirteen million, five hundred thirty-two thousand, one hundred thirty-one".