113556818 has 4 divisors (see below), whose sum is σ = 170335230. Its totient is φ = 56778408.

The previous prime is 113556809. The next prime is 113556847. The reversal of 113556818 is 818655311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 818655311 = 83 ⋅9863317.

It can be written as a sum of positive squares in only one way, i.e., 100861849 + 12694969 = 10043^2 + 3563^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28389203 + ... + 28389206.

Almost surely, 2^113556818 is an apocalyptic number.

113556818 is a deficient number, since it is larger than the sum of its proper divisors (56778412).

113556818 is an equidigital number, since it uses as much as digits as its factorization.

113556818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56778411.

The product of its digits is 28800, while the sum is 38.

The square root of 113556818 is about 10656.3041435575. The cubic root of 113556818 is about 484.2516080170.

The spelling of 113556818 in words is "one hundred thirteen million, five hundred fifty-six thousand, eight hundred eighteen".