117561902 has 8 divisors (see below), whose sum is σ = 186716016. Its totient is φ = 55323232.

The previous prime is 117561869. The next prime is 117561929. The reversal of 117561902 is 209165711.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1728818 + ... + 1728885.

It is an arithmetic number, because the mean of its divisors is an integer number (23339502).

Almost surely, 2^117561902 is an apocalyptic number.

117561902 is a deficient number, since it is larger than the sum of its proper divisors (69154114).

117561902 is a wasteful number, since it uses less digits than its factorization.

117561902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3457722.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 117561902 is about 10842.5966447157. The cubic root of 117561902 is about 489.8790510866.

The spelling of 117561902 in words is "one hundred seventeen million, five hundred sixty-one thousand, nine hundred two".