113144013 has 16 divisors (see below), whose sum is σ = 167798400. Its totient is φ = 75349440.

The previous prime is 113143999. The next prime is 113144033. The reversal of 113144013 is 310441311.

It is not a de Polignac number, because 113144013 - 2⁵ = 113143981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113144033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35208 + ... + 38286.

It is an arithmetic number, because the mean of its divisors is an integer number (10487400).

Almost surely, 2^113144013 is an apocalyptic number.

It is an amenable number.

113144013 is a deficient number, since it is larger than the sum of its proper divisors (54654387).

113144013 is a wasteful number, since it uses less digits than its factorization.

113144013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4449 (or 4443 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 113144013 is about 10636.9174576096. The cubic root of 113144013 is about 483.6641070985.

Adding to 113144013 its reverse (310441311), we get a palindrome (423585324).

The spelling of 113144013 in words is "one hundred thirteen million, one hundred forty-four thousand, thirteen".