117438507 has 6 divisors (see below), whose sum is σ = 169633412. Its totient is φ = 78292332.

The previous prime is 117438493. The next prime is 117438521. The reversal of 117438507 is 705834711.

117438507 is a `hidden beast` number, since 117 + 4 + 38 + 507 = 666.

It is an interprime number because it is at equal distance from previous prime (117438493) and next prime (117438521).

It is a de Polignac number, because none of the positive numbers 2^k-117438507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117438557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6524353 + ... + 6524370.

Almost surely, 2^117438507 is an apocalyptic number.

117438507 is a deficient number, since it is larger than the sum of its proper divisors (52194905).

117438507 is a wasteful number, since it uses less digits than its factorization.

117438507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048729 (or 13048726 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 117438507 is about 10836.9048625519. The cubic root of 117438507 is about 489.7075959181.

The spelling of 117438507 in words is "one hundred seventeen million, four hundred thirty-eight thousand, five hundred seven".