113409132 has 12 divisors (see below), whose sum is σ = 264621336. Its totient is φ = 37803040.

The previous prime is 113409089. The next prime is 113409133. The reversal of 113409132 is 231904311.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (113409133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4725369 + ... + 4725392.

It is an arithmetic number, because the mean of its divisors is an integer number (22051778).

Almost surely, 2^113409132 is an apocalyptic number.

113409132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113409132 is an abundant number, since it is smaller than the sum of its proper divisors (151212204).

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

113409132 is a wasteful number, since it uses less digits than its factorization.

113409132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9450768 (or 9450766 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 113409132 is about 10649.3723758727. The cubic root of 113409132 is about 484.0415862544.

The spelling of 113409132 in words is "one hundred thirteen million, four hundred nine thousand, one hundred thirty-two".