117929951 has 8 divisors (see below), whose sum is σ = 120830160. Its totient is φ = 115036992.

The previous prime is 117929939. The next prime is 117929957. The reversal of 117929951 is 159929711.

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

It is a cyclic number.

It is not a de Polignac number, because 117929951 - 2¹⁴ = 117913567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117929957) 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 7 ways as a sum of consecutive naturals, for example, 46451 + ... + 48923.

It is an arithmetic number, because the mean of its divisors is an integer number (15103770).

Almost surely, 2^117929951 is an apocalyptic number.

117929951 is a deficient number, since it is larger than the sum of its proper divisors (2900209).

117929951 is a wasteful number, since it uses less digits than its factorization.

117929951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3625.

The product of its digits is 51030, while the sum is 44.

The square root of 117929951 is about 10859.5557459778. Note that the first 3 decimals coincide. The cubic root of 117929951 is about 490.3897371305.

The spelling of 117929951 in words is "one hundred seventeen million, nine hundred twenty-nine thousand, nine hundred fifty-one".