117940537 has 12 divisors (see below), whose sum is σ = 139323024. Its totient is φ = 98969520.

The previous prime is 117940519. The next prime is 117940549. The reversal of 117940537 is 735049711.

It is not a de Polignac number, because 117940537 - 2⁷ = 117940409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117940496 and 117940505.

It is not an unprimeable number, because it can be changed into a prime (117940517) 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 11 ways as a sum of consecutive naturals, for example, 29863 + ... + 33580.

It is an arithmetic number, because the mean of its divisors is an integer number (11610252).

Almost surely, 2^117940537 is an apocalyptic number.

It is an amenable number.

117940537 is a deficient number, since it is larger than the sum of its proper divisors (21382487).

117940537 is a wasteful number, since it uses less digits than its factorization.

117940537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63480 (or 63467 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 37.

The square root of 117940537 is about 10860.0431398775. The cubic root of 117940537 is about 490.4044099946.

The spelling of 117940537 in words is "one hundred seventeen million, nine hundred forty thousand, five hundred thirty-seven".