109393931 has 8 divisors (see below), whose sum is σ = 111976800. Its totient is φ = 106840512.

The previous prime is 109393927. The next prime is 109393943. The reversal of 109393931 is 139393901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109393931 - 2² = 109393927 is a prime.

It is a super-2 number, since 2×109393931² = 23934064279265522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109393951) 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 7 ways as a sum of consecutive naturals, for example, 245 + ... + 14793.

It is an arithmetic number, because the mean of its divisors is an integer number (13997100).

Almost surely, 2^109393931 is an apocalyptic number.

109393931 is a deficient number, since it is larger than the sum of its proper divisors (2582869).

109393931 is a wasteful number, since it uses less digits than its factorization.

109393931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14725.

The product of its (nonzero) digits is 19683, while the sum is 38.

The square root of 109393931 is about 10459.1553674281. The cubic root of 109393931 is about 478.2603854920.

The spelling of 109393931 in words is "one hundred nine million, three hundred ninety-three thousand, nine hundred thirty-one".