112161540 has 96 divisors (see below), whose sum is σ = 322672896. Its totient is φ = 29102080.

The previous prime is 112161523. The next prime is 112161559. The reversal of 112161540 is 45161211.

It is a super-2 number, since 2×112161540² = 25160422110343200, which contains 22 as substring.

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, 481264 + ... + 481496.

It is an arithmetic number, because the mean of its divisors is an integer number (3361176).

Almost surely, 2^112161540 is an apocalyptic number.

112161540 is a gapful number since it is divisible by the number (10) 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 112161540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161336448).

112161540 is an abundant number, since it is smaller than the sum of its proper divisors (210511356).

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

112161540 is a wasteful number, since it uses less digits than its factorization.

112161540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

The square root of 112161540 is about 10590.6345418960. The cubic root of 112161540 is about 482.2600881621.

The spelling of 112161540 in words is "one hundred twelve million, one hundred sixty-one thousand, five hundred forty".