113155020 has 72 divisors (see below), whose sum is σ = 374446800. Its totient is φ = 27431040.

The previous prime is 113155001. The next prime is 113155033. The reversal of 113155020 is 20551311.

113155020 is a `hidden beast` number, since 113 + 1 + 550 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 113154984 and 113155002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26595 + ... + 30554.

It is an arithmetic number, because the mean of its divisors is an integer number (5200650).

Almost surely, 2^113155020 is an apocalyptic number.

113155020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113155020 is an abundant number, since it is smaller than the sum of its proper divisors (261291780).

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

113155020 is a wasteful number, since it uses less digits than its factorization.

113155020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57175 (or 57170 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 113155020 is about 10637.4348411635. The cubic root of 113155020 is about 483.6797907040.

The spelling of 113155020 in words is "one hundred thirteen million, one hundred fifty-five thousand, twenty".