113540144 has 40 divisors (see below), whose sum is σ = 243064800. Its totient is φ = 51104768.

The previous prime is 113540123. The next prime is 113540171. The reversal of 113540144 is 441045311.

It is a Harshad number since it is a multiple of its sum of digits (23).

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, 2819 + ... + 15330.

It is an arithmetic number, because the mean of its divisors is an integer number (6076620).

Almost surely, 2^113540144 is an apocalyptic number.

It is an amenable number.

113540144 is an abundant number, since it is smaller than the sum of its proper divisors (129524656).

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

113540144 is a wasteful number, since it uses less digits than its factorization.

113540144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18197 (or 18191 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 113540144 is about 10655.5217610401. The cubic root of 113540144 is about 484.2279053259.

Adding to 113540144 its reverse (441045311), we get a palindrome (554585455).

The spelling of 113540144 in words is "one hundred thirteen million, five hundred forty thousand, one hundred forty-four".