109539456 has 64 divisors (see below), whose sum is σ = 313360320. Its totient is φ = 33702912.

The previous prime is 109539433. The next prime is 109539457. The reversal of 109539456 is 654935901.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (109539457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5980 + ... + 15963.

It is an arithmetic number, because the mean of its divisors is an integer number (4896255).

Almost surely, 2^109539456 is an apocalyptic number.

109539456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

109539456 is an abundant number, since it is smaller than the sum of its proper divisors (203820864).

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

109539456 is a wasteful number, since it uses less digits than its factorization.

109539456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21973 (or 21961 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 42.

The square root of 109539456 is about 10466.1098790334. The cubic root of 109539456 is about 478.4723655738.

The spelling of 109539456 in words is "one hundred nine million, five hundred thirty-nine thousand, four hundred fifty-six".