117961725 has 48 divisors (see below), whose sum is σ = 236020608. Its totient is φ = 50749440.

The previous prime is 117961673. The next prime is 117961777. The reversal of 117961725 is 527169711.

It is an interprime number because it is at equal distance from previous prime (117961673) and next prime (117961777).

It is not a de Polignac number, because 117961725 - 2⁹ = 117961213 is a prime.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2317 + ... + 15533.

It is an arithmetic number, because the mean of its divisors is an integer number (4917096).

Almost surely, 2^117961725 is an apocalyptic number.

117961725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117961725 is an abundant number, since it is smaller than the sum of its proper divisors (118058883).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117961725 is a wasteful number, since it uses less digits than its factorization.

117961725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13254 (or 13249 counting only the distinct ones).

The product of its digits is 26460, while the sum is 39.

The square root of 117961725 is about 10861.0185986398. The cubic root of 117961725 is about 490.4337752627.

The spelling of 117961725 in words is "one hundred seventeen million, nine hundred sixty-one thousand, seven hundred twenty-five".