113731560 has 256 divisors, whose sum is σ = 405504000. Its totient is φ = 28304640.

The previous prime is 113731543. The next prime is 113731567. The reversal of 113731560 is 65137311.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113731567) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1439601 + ... + 1439679.

It is an arithmetic number, because the mean of its divisors is an integer number (1584000).

Almost surely, 2^113731560 is an apocalyptic number.

113731560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a pronic number, being equal to 10664×10665.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113731560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202752000).

113731560 is an abundant number, since it is smaller than the sum of its proper divisors (291772440).

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

113731560 is a wasteful number, since it uses less digits than its factorization.

113731560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 113731560 is about 10664.4999882789. The cubic root of 113731560 is about 484.4998706016.

Adding to 113731560 its reverse (65137311), we get a palindrome (178868871).

The spelling of 113731560 in words is "one hundred thirteen million, seven hundred thirty-one thousand, five hundred sixty".