117402172 has 12 divisors (see below), whose sum is σ = 207929736. Its totient is φ = 57993680.

The previous prime is 117402163. The next prime is 117402227. The reversal of 117402172 is 271204711.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176479 + ... + 177142.

It is an arithmetic number, because the mean of its divisors is an integer number (17327478).

Almost surely, 2^117402172 is an apocalyptic number.

It is an amenable number.

117402172 is a deficient number, since it is larger than the sum of its proper divisors (90527564).

117402172 is a wasteful number, since it uses less digits than its factorization.

117402172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353708 (or 353706 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 117402172 is about 10835.2282855508. The cubic root of 117402172 is about 489.6570861908.

Adding to 117402172 its reverse (271204711), we get a palindrome (388606883).

The spelling of 117402172 in words is "one hundred seventeen million, four hundred two thousand, one hundred seventy-two".