113540 has 24 divisors (see below), whose sum is σ = 272832. Its totient is φ = 38880.

The previous prime is 113539. The next prime is 113557. The reversal of 113540 is 45311.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266 + ... + 545.

It is an arithmetic number, because the mean of its divisors is an integer number (11368).

2¹¹³⁵⁴⁰ is an apocalyptic number.

113540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113540 is an abundant number, since it is smaller than the sum of its proper divisors (159292).

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

113540 is a wasteful number, since it uses less digits than its factorization.

113540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827 (or 825 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 113540 is about 336.9569705467. The cubic root of 113540 is about 48.4227700615.

Subtracting from 113540 its sum of digits (14), we obtain a triangular number (113526 = T₄₇₆).

Adding to 113540 its reverse (45311), we get a palindrome (158851).

The spelling of 113540 in words is "one hundred thirteen thousand, five hundred forty".