117157565 has 16 divisors (see below), whose sum is σ = 160876800. Its totient is φ = 80234880.

The previous prime is 117157559. The next prime is 117157583. The reversal of 117157565 is 565751711.

It is not a de Polignac number, because 117157565 - 2⁴ = 117157549 is a prime.

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, 35120 + ... + 38310.

It is an arithmetic number, because the mean of its divisors is an integer number (10054800).

Almost surely, 2^117157565 is an apocalyptic number.

It is an amenable number.

117157565 is a deficient number, since it is larger than the sum of its proper divisors (43719235).

117157565 is a wasteful number, since it uses less digits than its factorization.

117157565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252.

The product of its digits is 36750, while the sum is 38.

The square root of 117157565 is about 10823.9348205724. The cubic root of 117157565 is about 489.3167834864.

The spelling of 117157565 in words is "one hundred seventeen million, one hundred fifty-seven thousand, five hundred sixty-five".