117117825 has 24 divisors (see below), whose sum is σ = 211239456. Its totient is φ = 56784000.

The previous prime is 117117797. The next prime is 117117827. The reversal of 117117825 is 528711711.

It is not a de Polignac number, because 117117825 - 2¹⁰ = 117116801 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (117117827) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70156 + ... + 71805.

It is an arithmetic number, because the mean of its divisors is an integer number (8801644).

Almost surely, 2^117117825 is an apocalyptic number.

117117825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117117825 is a deficient number, since it is larger than the sum of its proper divisors (94121631).

117117825 is a wasteful number, since it uses less digits than its factorization.

117117825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141985 (or 141980 counting only the distinct ones).

The product of its digits is 3920, while the sum is 33.

The square root of 117117825 is about 10822.0989184169. The cubic root of 117117825 is about 489.2614515977.

The spelling of 117117825 in words is "one hundred seventeen million, one hundred seventeen thousand, eight hundred twenty-five".