117145725 has 48 divisors (see below), whose sum is σ = 206861760. Its totient is φ = 58291200.

The previous prime is 117145709. The next prime is 117145727. The reversal of 117145725 is 527541711.

It is not a de Polignac number, because 117145725 - 2⁴ = 117145709 is a prime.

It is a super-3 number, since 3×117145725³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117145727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 176895 + ... + 177555.

It is an arithmetic number, because the mean of its divisors is an integer number (4309620).

Almost surely, 2^117145725 is an apocalyptic number.

117145725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117145725 is a deficient number, since it is larger than the sum of its proper divisors (89716035).

117145725 is a wasteful number, since it uses less digits than its factorization.

117145725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830 (or 825 counting only the distinct ones).

The product of its digits is 9800, while the sum is 33.

The square root of 117145725 is about 10823.3878707177. The cubic root of 117145725 is about 489.3002994011.

The spelling of 117145725 in words is "one hundred seventeen million, one hundred forty-five thousand, seven hundred twenty-five".