117117651 has 16 divisors (see below), whose sum is σ = 181833984. Its totient is φ = 65661024.

The previous prime is 117117613. The next prime is 117117661. The reversal of 117117651 is 156711711.

It is not a de Polignac number, because 117117651 - 2⁷ = 117117523 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117117661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51501 + ... + 53726.

It is an arithmetic number, because the mean of its divisors is an integer number (11364624).

Almost surely, 2^117117651 is an apocalyptic number.

117117651 is a deficient number, since it is larger than the sum of its proper divisors (64716333).

117117651 is a wasteful number, since it uses less digits than its factorization.

117117651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105290.

The product of its digits is 1470, while the sum is 30.

The square root of 117117651 is about 10822.0908793079. The cubic root of 117117651 is about 489.2612093017.

The spelling of 117117651 in words is "one hundred seventeen million, one hundred seventeen thousand, six hundred fifty-one".