117880549 has 2 divisors, whose sum is σ = 117880550. Its totient is φ = 117880548.

The previous prime is 117880493. The next prime is 117880573. The reversal of 117880549 is 945088711.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68178049 + 49702500 = 8257^2 + 7050^2 .

It is a cyclic number.

It is not a de Polignac number, because 117880549 - 2¹⁵ = 117847781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117880249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58940274 + 58940275.

It is an arithmetic number, because the mean of its divisors is an integer number (58940275).

Almost surely, 2^117880549 is an apocalyptic number.

It is an amenable number.

117880549 is a deficient number, since it is larger than the sum of its proper divisors (1).

117880549 is an equidigital number, since it uses as much as digits as its factorization.

117880549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 43.

The square root of 117880549 is about 10857.2809211146. The cubic root of 117880549 is about 490.3212512278.

The spelling of 117880549 in words is "one hundred seventeen million, eight hundred eighty thousand, five hundred forty-nine".