117191225 has 12 divisors (see below), whose sum is σ = 145611216. Its totient is φ = 93563280.

The previous prime is 117191219. The next prime is 117191231. The reversal of 117191225 is 522191711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117191219) and next prime (117191231).

It is not a de Polignac number, because 117191225 - 2¹² = 117187129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8594 + ... + 17556.

It is an arithmetic number, because the mean of its divisors is an integer number (12134268).

Almost surely, 2^117191225 is an apocalyptic number.

It is an amenable number.

117191225 is a deficient number, since it is larger than the sum of its proper divisors (28419991).

117191225 is an equidigital number, since it uses as much as digits as its factorization.

117191225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9496 (or 9491 counting only the distinct ones).

The product of its digits is 1260, while the sum is 29.

The square root of 117191225 is about 10825.4895963185. The cubic root of 117191225 is about 489.3636401159.

The spelling of 117191225 in words is "one hundred seventeen million, one hundred ninety-one thousand, two hundred twenty-five".