117212015 has 8 divisors (see below), whose sum is σ = 142047648. Its totient is φ = 92840800.

The previous prime is 117212003. The next prime is 117212027. The reversal of 117212015 is 510212711.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (117212003) and next prime (117212027).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-117212015 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115547 + ... + 116556.

It is an arithmetic number, because the mean of its divisors is an integer number (17755956).

Almost surely, 2^117212015 is an apocalyptic number.

117212015 is a deficient number, since it is larger than the sum of its proper divisors (24835633).

117212015 is a wasteful number, since it uses less digits than its factorization.

117212015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232209.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 117212015 is about 10826.4497874419. The cubic root of 117212015 is about 489.3925764932.

Adding to 117212015 its reverse (510212711), we get a palindrome (627424726).

The spelling of 117212015 in words is "one hundred seventeen million, two hundred twelve thousand, fifteen".