117219992 has 8 divisors (see below), whose sum is σ = 219787500. Its totient is φ = 58609992.

The previous prime is 117219967. The next prime is 117219997. The reversal of 117219992 is 299912711.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117219997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7326242 + ... + 7326257.

Almost surely, 2^117219992 is an apocalyptic number.

It is an amenable number.

117219992 is a deficient number, since it is larger than the sum of its proper divisors (102567508).

117219992 is a wasteful number, since it uses less digits than its factorization.

117219992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14652505 (or 14652501 counting only the distinct ones).

The product of its digits is 20412, while the sum is 41.

The square root of 117219992 is about 10826.8181844898. The cubic root of 117219992 is about 489.4036783017.

The spelling of 117219992 in words is "one hundred seventeen million, two hundred nineteen thousand, nine hundred ninety-two".