117940549 has 2 divisors, whose sum is σ = 117940550. Its totient is φ = 117940548.

The previous prime is 117940519. The next prime is 117940553. The reversal of 117940549 is 945049711.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110880900 + 7059649 = 10530^2 + 2657^2 .

It is a cyclic number.

It is not a de Polignac number, because 117940549 - 2⁵ = 117940517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117940519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58970274 + 58970275.

It is an arithmetic number, because the mean of its divisors is an integer number (58970275).

Almost surely, 2^117940549 is an apocalyptic number.

It is an amenable number.

117940549 is a deficient number, since it is larger than the sum of its proper divisors (1).

117940549 is an equidigital number, since it uses as much as digits as its factorization.

117940549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 117940549 is about 10860.0436923615. The cubic root of 117940549 is about 490.4044266269.

The spelling of 117940549 in words is "one hundred seventeen million, nine hundred forty thousand, five hundred forty-nine".