117564241 has 2 divisors, whose sum is σ = 117564242. Its totient is φ = 117564240.

The previous prime is 117564233. The next prime is 117564257. The reversal of 117564241 is 142465711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114939841 + 2624400 = 10721^2 + 1620^2 .

It is a cyclic number.

It is not a de Polignac number, because 117564241 - 2³ = 117564233 is a prime.

It is not a weakly prime, because it can be changed into another prime (117564211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58782120 + 58782121.

It is an arithmetic number, because the mean of its divisors is an integer number (58782121).

Almost surely, 2^117564241 is an apocalyptic number.

It is an amenable number.

117564241 is a deficient number, since it is larger than the sum of its proper divisors (1).

117564241 is an equidigital number, since it uses as much as digits as its factorization.

117564241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 31.

The square root of 117564241 is about 10842.7045057956. The cubic root of 117564241 is about 489.8822999268.

The spelling of 117564241 in words is "one hundred seventeen million, five hundred sixty-four thousand, two hundred forty-one".