117405225 has 108 divisors (see below), whose sum is σ = 255805056. Its totient is φ = 51226560.

The previous prime is 117405209. The next prime is 117405241. The reversal of 117405225 is 522504711.

It is an interprime number because it is at equal distance from previous prime (117405209) and next prime (117405241).

It is not a de Polignac number, because 117405225 - 2⁴ = 117405209 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 253344 + ... + 253806.

Almost surely, 2^117405225 is an apocalyptic number.

117405225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117405225 is an abundant number, since it is smaller than the sum of its proper divisors (138399831).

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

117405225 is a wasteful number, since it uses less digits than its factorization.

117405225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 117405225 is about 10835.3691676841. The cubic root of 117405225 is about 489.6613306044.

Adding to 117405225 its reverse (522504711), we get a palindrome (639909936).

The spelling of 117405225 in words is "one hundred seventeen million, four hundred five thousand, two hundred twenty-five".