117587641 has 2 divisors, whose sum is σ = 117587642. Its totient is φ = 117587640.

The previous prime is 117587627. The next prime is 117587683. The reversal of 117587641 is 146785711.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74304400 + 43283241 = 8620^2 + 6579^2 .

It is a cyclic number.

It is not a de Polignac number, because 117587641 - 2⁵ = 117587609 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 117587594 and 117587603.

It is not a weakly prime, because it can be changed into another prime (117584641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58793820 + 58793821.

It is an arithmetic number, because the mean of its divisors is an integer number (58793821).

Almost surely, 2^117587641 is an apocalyptic number.

It is an amenable number.

117587641 is a deficient number, since it is larger than the sum of its proper divisors (1).

117587641 is an equidigital number, since it uses as much as digits as its factorization.

117587641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47040, while the sum is 40.

The square root of 117587641 is about 10843.7835186802. The cubic root of 117587641 is about 489.9147998470.

The spelling of 117587641 in words is "one hundred seventeen million, five hundred eighty-seven thousand, six hundred forty-one".