113651920 has 40 divisors (see below), whose sum is σ = 278151840. Its totient is φ = 43067520.

The previous prime is 113651917. The next prime is 113651927. The reversal of 113651920 is 29156311.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113651927) 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 7 ways as a sum of consecutive naturals, for example, 35866 + ... + 38905.

It is an arithmetic number, because the mean of its divisors is an integer number (6953796).

Almost surely, 2^113651920 is an apocalyptic number.

113651920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113651920 is an abundant number, since it is smaller than the sum of its proper divisors (164499920).

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

113651920 is a wasteful number, since it uses less digits than its factorization.

113651920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74803 (or 74797 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 113651920 is about 10660.7654509421. The cubic root of 113651920 is about 484.3867545951.

The spelling of 113651920 in words is "one hundred thirteen million, six hundred fifty-one thousand, nine hundred twenty".