117546813 has 24 divisors (see below), whose sum is σ = 177914880. Its totient is φ = 74643360.

The previous prime is 117546809. The next prime is 117546827. The reversal of 117546813 is 318645711.

It is not a de Polignac number, because 117546813 - 2² = 117546809 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117546893) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54628 + ... + 56738.

It is an arithmetic number, because the mean of its divisors is an integer number (7413120).

Almost surely, 2^117546813 is an apocalyptic number.

It is an amenable number.

117546813 is a deficient number, since it is larger than the sum of its proper divisors (60368067).

117546813 is a wasteful number, since it uses less digits than its factorization.

117546813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2406 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 117546813 is about 10841.9008019812. The cubic root of 117546813 is about 489.8580916285.

The spelling of 117546813 in words is "one hundred seventeen million, five hundred forty-six thousand, eight hundred thirteen".