113531413 has 4 divisors (see below), whose sum is σ = 113711968. Its totient is φ = 113350860.

The previous prime is 113531401. The next prime is 113531417. The reversal of 113531413 is 314135311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113531413 - 2²¹ = 111434261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113531417) 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, 89331 + ... + 90592.

It is an arithmetic number, because the mean of its divisors is an integer number (28427992).

Almost surely, 2^113531413 is an apocalyptic number.

It is an amenable number.

113531413 is a deficient number, since it is larger than the sum of its proper divisors (180555).

113531413 is an equidigital number, since it uses as much as digits as its factorization.

113531413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180554.

The product of its digits is 540, while the sum is 22.

The square root of 113531413 is about 10655.1120594764. The cubic root of 113531413 is about 484.2154929694.

Adding to 113531413 its reverse (314135311), we get a palindrome (427666724).

The spelling of 113531413 in words is "one hundred thirteen million, five hundred thirty-one thousand, four hundred thirteen".