117213252 has 24 divisors (see below), whose sum is σ = 294536256. Its totient is φ = 36065568.

The previous prime is 117213251. The next prime is 117213281. The reversal of 117213252 is 252312711.

It is not an unprimeable number, because it can be changed into a prime (117213251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375528 + ... + 375839.

It is an arithmetic number, because the mean of its divisors is an integer number (12272344).

Almost surely, 2^117213252 is an apocalyptic number.

117213252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117213252 is an abundant number, since it is smaller than the sum of its proper divisors (177323004).

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

117213252 is a wasteful number, since it uses less digits than its factorization.

117213252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751387 (or 751385 counting only the distinct ones).

The product of its digits is 840, while the sum is 24.

The square root of 117213252 is about 10826.5069158986. The cubic root of 117213252 is about 489.3942980928.

Adding to 117213252 its reverse (252312711), we get a palindrome (369525963).

The spelling of 117213252 in words is "one hundred seventeen million, two hundred thirteen thousand, two hundred fifty-two".