113640560 has 160 divisors (see below), whose sum is σ = 307212480. Its totient is φ = 38707200.

The previous prime is 113640559. The next prime is 113640587. The reversal of 113640560 is 65046311.

It is a super-2 number, since 2×113640560² = 25828353754227200, which contains 22 as substring.

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, 1556684 + ... + 1556756.

It is an arithmetic number, because the mean of its divisors is an integer number (1920078).

Almost surely, 2^113640560 is an apocalyptic number.

113640560 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 113640560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153606240).

113640560 is an abundant number, since it is smaller than the sum of its proper divisors (193571920).

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

113640560 is a wasteful number, since it uses less digits than its factorization.

113640560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 113640560 is about 10660.2326428648. The cubic root of 113640560 is about 484.3706152083.

Adding to 113640560 its reverse (65046311), we get a palindrome (178686871).

The spelling of 113640560 in words is "one hundred thirteen million, six hundred forty thousand, five hundred sixty".