113405512 has 16 divisors (see below), whose sum is σ = 231966000. Its totient is φ = 51547920.

The previous prime is 113405503. The next prime is 113405561. The reversal of 113405512 is 215504311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644262 + ... + 644437.

It is an arithmetic number, because the mean of its divisors is an integer number (14497875).

Almost surely, 2^113405512 is an apocalyptic number.

It is an amenable number.

113405512 is an abundant number, since it is smaller than the sum of its proper divisors (118560488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113405512 is a wasteful number, since it uses less digits than its factorization.

113405512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1288716 (or 1288712 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 113405512 is about 10649.2024114485. The cubic root of 113405512 is about 484.0364360248.

Adding to 113405512 its reverse (215504311), we get a palindrome (328909823).

The spelling of 113405512 in words is "one hundred thirteen million, four hundred five thousand, five hundred twelve".