112745820 has 48 divisors (see below), whose sum is σ = 344389248. Its totient is φ = 27332160.

The previous prime is 112745807. The next prime is 112745821. The reversal of 112745820 is 28547211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112745821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84754 + ... + 86073.

It is an arithmetic number, because the mean of its divisors is an integer number (7174776).

Almost surely, 2^112745820 is an apocalyptic number.

112745820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112745820 is an abundant number, since it is smaller than the sum of its proper divisors (231643428).

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

112745820 is a wasteful number, since it uses less digits than its factorization.

112745820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170850 (or 170848 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 112745820 is about 10618.1834604606. The cubic root of 112745820 is about 483.0960462949.

The spelling of 112745820 in words is "one hundred twelve million, seven hundred forty-five thousand, eight hundred twenty".