117601631 has 32 divisors (see below), whose sum is σ = 149299200. Its totient is φ = 90316800.

The previous prime is 117601609. The next prime is 117601633. The reversal of 117601631 is 136106711.

It is not a de Polignac number, because 117601631 - 2¹⁸ = 117339487 is a prime.

It is a super-2 number, since 2×117601631² = 27660287227720322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 117601631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117601633) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 261695 + ... + 262143.

It is an arithmetic number, because the mean of its divisors is an integer number (4665600).

Almost surely, 2^117601631 is an apocalyptic number.

117601631 is a deficient number, since it is larger than the sum of its proper divisors (31697569).

117601631 is a wasteful number, since it uses less digits than its factorization.

117601631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 117601631 is about 10844.4285695467. The cubic root of 117601631 is about 489.9342282954.

The spelling of 117601631 in words is "one hundred seventeen million, six hundred one thousand, six hundred thirty-one".