117786231 has 24 divisors (see below), whose sum is σ = 178948224. Its totient is φ = 77406840.

The previous prime is 117786203. The next prime is 117786241. The reversal of 117786231 is 132687711.

It is not a de Polignac number, because 117786231 - 2⁵ = 117786199 is a prime.

It is a super-2 number, since 2×117786231² = 27747192426370722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117786241) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13840 + ... + 20666.

It is an arithmetic number, because the mean of its divisors is an integer number (7456176).

Almost surely, 2^117786231 is an apocalyptic number.

117786231 is a deficient number, since it is larger than the sum of its proper divisors (61161993).

117786231 is an frugal number, since it uses more digits than its factorization.

117786231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6913 (or 6901 counting only the distinct ones).

The product of its digits is 14112, while the sum is 36.

The square root of 117786231 is about 10852.9365150636. The cubic root of 117786231 is about 490.1904451994.

It can be divided in two parts, 11778623 and 1, that added together give a square (11778624 = 3432²).

The spelling of 117786231 in words is "one hundred seventeen million, seven hundred eighty-six thousand, two hundred thirty-one".