117929925 has 30 divisors (see below), whose sum is σ = 218450738. Its totient is φ = 62894880.

The previous prime is 117929891. The next prime is 117929927. The reversal of 117929925 is 529929711.

It can be written as a sum of positive squares in 3 ways, for example, as 17589636 + 100340289 = 4194^2 + 10017^2 .

It is not a de Polignac number, because 117929925 - 2¹⁰ = 117928901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117929927) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 27094 + ... + 31143.

Almost surely, 2^117929925 is an apocalyptic number.

117929925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117929925 is a deficient number, since it is larger than the sum of its proper divisors (100520813).

117929925 is an equidigital number, since it uses as much as digits as its factorization.

117929925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58259 (or 58245 counting only the distinct ones).

The product of its digits is 102060, while the sum is 45.

The square root of 117929925 is about 10859.5545488754. The cubic root of 117929925 is about 490.3897010918.

The spelling of 117929925 in words is "one hundred seventeen million, nine hundred twenty-nine thousand, nine hundred twenty-five".