117724215 has 24 divisors (see below), whose sum is σ = 219112560. Its totient is φ = 53816448.

The previous prime is 117724213. The next prime is 117724219. The reversal of 117724215 is 512427711.

It is not a de Polignac number, because 117724215 - 2¹ = 117724213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117724213) 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, 79350 + ... + 80819.

It is an arithmetic number, because the mean of its divisors is an integer number (9129690).

Almost surely, 2^117724215 is an apocalyptic number.

117724215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

117724215 is a deficient number, since it is larger than the sum of its proper divisors (101388345).

117724215 is a wasteful number, since it uses less digits than its factorization.

117724215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160191 (or 160184 counting only the distinct ones).

The product of its digits is 3920, while the sum is 30.

The square root of 117724215 is about 10850.0790319702. The cubic root of 117724215 is about 490.1043995237.

The spelling of 117724215 in words is "one hundred seventeen million, seven hundred twenty-four thousand, two hundred fifteen".