113420556 has 18 divisors (see below), whose sum is σ = 286702052. Its totient is φ = 37806840.

The previous prime is 113420551. The next prime is 113420561. The reversal of 113420556 is 655024311.

It is an interprime number because it is at equal distance from previous prime (113420551) and next prime (113420561).

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (113420551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1575250 + ... + 1575321.

Almost surely, 2^113420556 is an apocalyptic number.

It is an amenable number.

113420556 is an abundant number, since it is smaller than the sum of its proper divisors (173281496).

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

113420556 is a wasteful number, since it uses less digits than its factorization.

113420556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3150581 (or 3150576 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 113420556 is about 10649.9087320033. The cubic root of 113420556 is about 484.0578386358.

Adding to 113420556 its reverse (655024311), we get a palindrome (768444867).

The spelling of 113420556 in words is "one hundred thirteen million, four hundred twenty thousand, five hundred fifty-six".