117864051 has 4 divisors (see below), whose sum is σ = 157152072. Its totient is φ = 78576032.

The previous prime is 117864041. The next prime is 117864079. The reversal of 117864051 is 150468711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 117864051 - 2⁶ = 117863987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117864041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19644006 + ... + 19644011.

It is an arithmetic number, because the mean of its divisors is an integer number (39288018).

Almost surely, 2^117864051 is an apocalyptic number.

117864051 is a deficient number, since it is larger than the sum of its proper divisors (39288021).

117864051 is an equidigital number, since it uses as much as digits as its factorization.

117864051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39288020.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 117864051 is about 10856.5211278752. The cubic root of 117864051 is about 490.2983758185.

The spelling of 117864051 in words is "one hundred seventeen million, eight hundred sixty-four thousand, fifty-one".