117531806 has 8 divisors (see below), whose sum is σ = 201483120. Its totient is φ = 50370768.

The previous prime is 117531797. The next prime is 117531823. The reversal of 117531806 is 608135711.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4197551 + ... + 4197578.

It is an arithmetic number, because the mean of its divisors is an integer number (25185390).

Almost surely, 2^117531806 is an apocalyptic number.

117531806 is a deficient number, since it is larger than the sum of its proper divisors (83951314).

117531806 is an equidigital number, since it uses as much as digits as its factorization.

117531806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8395138.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 117531806 is about 10841.2086964508. The cubic root of 117531806 is about 489.8372442939.

The spelling of 117531806 in words is "one hundred seventeen million, five hundred thirty-one thousand, eight hundred six".