117072313 has 2 divisors, whose sum is σ = 117072314. Its totient is φ = 117072312.

The previous prime is 117072311. The next prime is 117072317. The reversal of 117072313 is 313270711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59721984 + 57350329 = 7728^2 + 7573^2 .

It is a cyclic number.

It is not a de Polignac number, because 117072313 - 2¹ = 117072311 is a prime.

Together with 117072311, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (117072311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58536156 + 58536157.

It is an arithmetic number, because the mean of its divisors is an integer number (58536157).

Almost surely, 2^117072313 is an apocalyptic number.

It is an amenable number.

117072313 is a deficient number, since it is larger than the sum of its proper divisors (1).

117072313 is an equidigital number, since it uses as much as digits as its factorization.

117072313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 882, while the sum is 25.

The square root of 117072313 is about 10819.9959796665. The cubic root of 117072313 is about 489.1980677016.

The spelling of 117072313 in words is "one hundred seventeen million, seventy-two thousand, three hundred thirteen".