117820425 has 48 divisors (see below), whose sum is σ = 207576000. Its totient is φ = 58798080.

The previous prime is 117820403. The next prime is 117820427. The reversal of 117820425 is 524028711.

It is not a de Polignac number, because 117820425 - 2⁵ = 117820393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117820392 and 117820401.

It is not an unprimeable number, because it can be changed into a prime (117820427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126361 + ... + 127289.

It is an arithmetic number, because the mean of its divisors is an integer number (4324500).

Almost surely, 2^117820425 is an apocalyptic number.

117820425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117820425 is a deficient number, since it is larger than the sum of its proper divisors (89755575).

117820425 is a wasteful number, since it uses less digits than its factorization.

117820425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 117820425 is about 10854.5117347580. The cubic root of 117820425 is about 490.2378756169.

The spelling of 117820425 in words is "one hundred seventeen million, eight hundred twenty thousand, four hundred twenty-five".