117247212 has 36 divisors (see below), whose sum is σ = 297136840. Its totient is φ = 38981952.

The previous prime is 117247189. The next prime is 117247213. The reversal of 117247212 is 212742711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (117247213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10743 + ... + 18705.

Almost surely, 2^117247212 is an apocalyptic number.

117247212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117247212 is an abundant number, since it is smaller than the sum of its proper divisors (179889628).

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

117247212 is a wasteful number, since it uses less digits than its factorization.

117247212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382 (or 8377 counting only the distinct ones).

The product of its digits is 1568, while the sum is 27.

The square root of 117247212 is about 10828.0751752100. The cubic root of 117247212 is about 489.4415573269.

Adding to 117247212 its reverse (212742711), we get a palindrome (329989923).

It can be divided in two parts, 1172 and 47212, that added together give a palindrome (48384).

The spelling of 117247212 in words is "one hundred seventeen million, two hundred forty-seven thousand, two hundred twelve".