117451631 has 8 divisors (see below), whose sum is σ = 128251728. Its totient is φ = 106672000.

The previous prime is 117451613. The next prime is 117451661. The reversal of 117451631 is 136154711.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117451631 - 2¹⁴ = 117435247 is a prime.

It is a super-2 number, since 2×117451631² = 27589771249120322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 117451594 and 117451603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117451661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8471 + ... + 17511.

It is an arithmetic number, because the mean of its divisors is an integer number (16031466).

Almost surely, 2^117451631 is an apocalyptic number.

117451631 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

117451631 is a deficient number, since it is larger than the sum of its proper divisors (10800097).

117451631 is a wasteful number, since it uses less digits than its factorization.

117451631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10233.

The product of its digits is 2520, while the sum is 29.

The square root of 117451631 is about 10837.5103690839. The cubic root of 117451631 is about 489.7258371896.

The spelling of 117451631 in words is "one hundred seventeen million, four hundred fifty-one thousand, six hundred thirty-one".