109512132 has 12 divisors (see below), whose sum is σ = 255528336. Its totient is φ = 36504040.

The previous prime is 109512071. The next prime is 109512133. The reversal of 109512132 is 231215901.

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 (109512133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4562994 + ... + 4563017.

It is an arithmetic number, because the mean of its divisors is an integer number (21294028).

Almost surely, 2^109512132 is an apocalyptic number.

109512132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

109512132 is an abundant number, since it is smaller than the sum of its proper divisors (146016204).

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

109512132 is a wasteful number, since it uses less digits than its factorization.

109512132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9126018 (or 9126016 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 24.

The square root of 109512132 is about 10464.8044415555. The cubic root of 109512132 is about 478.4325781869.

The spelling of 109512132 in words is "one hundred nine million, five hundred twelve thousand, one hundred thirty-two".