109257597 has 12 divisors (see below), whose sum is σ = 158514720. Its totient is φ = 72516168.

The previous prime is 109257541. The next prime is 109257607. The reversal of 109257597 is 795752901.

109257597 is a `hidden beast` number, since 1 + 0 + 9 + 2 + 57 + 597 = 666.

It is not a de Polignac number, because 109257597 - 2⁸ = 109257341 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109257697) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24697 + ... + 28782.

It is an arithmetic number, because the mean of its divisors is an integer number (13209560).

Almost surely, 2^109257597 is an apocalyptic number.

It is an amenable number.

109257597 is a deficient number, since it is larger than the sum of its proper divisors (49257123).

109257597 is a wasteful number, since it uses less digits than its factorization.

109257597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53712 (or 53709 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 45.

The square root of 109257597 is about 10452.6358876601. The cubic root of 109257597 is about 478.0616229208.

The spelling of 109257597 in words is "one hundred nine million, two hundred fifty-seven thousand, five hundred ninety-seven".