109072520 has 32 divisors (see below), whose sum is σ = 245980800. Its totient is φ = 43528128.

The previous prime is 109072519. The next prime is 109072531. The reversal of 109072520 is 25270901.

It is a self number, because there is not a number n which added to its sum of digits gives 109072520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15761 + ... + 21599.

It is an arithmetic number, because the mean of its divisors is an integer number (7686900).

Almost surely, 2^109072520 is an apocalyptic number.

109072520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

109072520 is an abundant number, since it is smaller than the sum of its proper divisors (136908280).

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

109072520 is a wasteful number, since it uses less digits than its factorization.

109072520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6317 (or 6313 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 109072520 is about 10443.7790095348. The cubic root of 109072520 is about 477.7915327250.

The spelling of 109072520 in words is "one hundred nine million, seventy-two thousand, five hundred twenty".