113218612 has 12 divisors (see below), whose sum is σ = 213373636. Its totient is φ = 52254720.

The previous prime is 113218597. The next prime is 113218619. The reversal of 113218612 is 216812311.

It can be written as a sum of positive squares in 2 ways, for example, as 46730896 + 66487716 = 6836^2 + 8154^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113218619) 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, 1088589 + ... + 1088692.

Almost surely, 2^113218612 is an apocalyptic number.

It is an amenable number.

113218612 is a deficient number, since it is larger than the sum of its proper divisors (100155024).

113218612 is a wasteful number, since it uses less digits than its factorization.

113218612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177298 (or 2177296 counting only the distinct ones).

The product of its digits is 576, while the sum is 25.

The square root of 113218612 is about 10640.4234878129. The cubic root of 113218612 is about 483.7703814856.

The spelling of 113218612 in words is "one hundred thirteen million, two hundred eighteen thousand, six hundred twelve".