112921540 has 24 divisors (see below), whose sum is σ = 237612312. Its totient is φ = 45077760.

The previous prime is 112921519. The next prime is 112921547. The reversal of 112921540 is 45129211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 391876 + 112529664 = 626^2 + 10608^2 .

It is not an unprimeable number, because it can be changed into a prime (112921547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5002 + ... + 15838.

It is an arithmetic number, because the mean of its divisors is an integer number (9900513).

Almost surely, 2^112921540 is an apocalyptic number.

112921540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112921540 is an abundant number, since it is smaller than the sum of its proper divisors (124690772).

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

112921540 is a wasteful number, since it uses less digits than its factorization.

112921540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11367 (or 11365 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 112921540 is about 10626.4547239425. The cubic root of 112921540 is about 483.3468924720.

The spelling of 112921540 in words is "one hundred twelve million, nine hundred twenty-one thousand, five hundred forty".