109591012 has 24 divisors (see below), whose sum is σ = 204444800. Its totient is φ = 51251616.

The previous prime is 109590979. The next prime is 109591037. The reversal of 109591012 is 210195901.

It is a super-2 number, since 2×109591012² = 24020379822368288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3123 + ... + 15130.

Almost surely, 2^109591012 is an apocalyptic number.

It is an amenable number.

109591012 is a deficient number, since it is larger than the sum of its proper divisors (94853788).

109591012 is a wasteful number, since it uses less digits than its factorization.

109591012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18355 (or 18353 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 28.

The square root of 109591012 is about 10468.5725865564. The cubic root of 109591012 is about 478.5474199669.

The spelling of 109591012 in words is "one hundred nine million, five hundred ninety-one thousand, twelve".