117365213 has 4 divisors (see below), whose sum is σ = 134131680. Its totient is φ = 100598748.

The previous prime is 117365191. The next prime is 117365231. The reversal of 117365213 is 312563711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312563711 = 29 ⋅10778059.

It is a cyclic number.

It is not a de Polignac number, because 117365213 - 2¹² = 117361117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117365273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8383223 + ... + 8383236.

It is an arithmetic number, because the mean of its divisors is an integer number (33532920).

Almost surely, 2^117365213 is an apocalyptic number.

It is an amenable number.

117365213 is a deficient number, since it is larger than the sum of its proper divisors (16766467).

117365213 is an equidigital number, since it uses as much as digits as its factorization.

117365213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16766466.

The product of its digits is 3780, while the sum is 29.

The square root of 117365213 is about 10833.5226496279. The cubic root of 117365213 is about 489.6056983407.

The spelling of 117365213 in words is "one hundred seventeen million, three hundred sixty-five thousand, two hundred thirteen".