109720135 has 16 divisors (see below), whose sum is σ = 151246656. Its totient is φ = 74850048.

The previous prime is 109720099. The next prime is 109720147. The reversal of 109720135 is 531027901.

It is not a de Polignac number, because 109720135 - 2¹⁷ = 109589063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1062 + ... + 14851.

It is an arithmetic number, because the mean of its divisors is an integer number (9452916).

Almost surely, 2^109720135 is an apocalyptic number.

109720135 is a deficient number, since it is larger than the sum of its proper divisors (41526521).

109720135 is a wasteful number, since it uses less digits than its factorization.

109720135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16122.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 109720135 is about 10474.7379442161. The cubic root of 109720135 is about 478.7352919014.

The spelling of 109720135 in words is "one hundred nine million, seven hundred twenty thousand, one hundred thirty-five".