1113945072 has 160 divisors (see below), whose sum is σ = 3206461440. Its totient is φ = 332121600.

The previous prime is 1113945037. The next prime is 1113945101. The reversal of 1113945072 is 2705493111.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27169372 + ... + 27169412.

It is an arithmetic number, because the mean of its divisors is an integer number (20040384).

Almost surely, 2^1113945072 is an apocalyptic number.

1113945072 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113945072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1603230720).

1113945072 is an abundant number, since it is smaller than the sum of its proper divisors (2092516368).

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

1113945072 is an equidigital number, since it uses as much as digits as its factorization.

1113945072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 33.

The square root of 1113945072 is about 33375.8156754258. The cubic root of 1113945072 is about 1036.6239985931.

The spelling of 1113945072 in words is "one billion, one hundred thirteen million, nine hundred forty-five thousand, seventy-two".