117549557 has 16 divisors (see below), whose sum is σ = 124848000. Its totient is φ = 110510400.

The previous prime is 117549529. The next prime is 117549563. The reversal of 117549557 is 755945711.

It is a cyclic number.

It is not a de Polignac number, because 117549557 - 2⁸ = 117549301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117549457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195944 + ... + 196542.

It is an arithmetic number, because the mean of its divisors is an integer number (7803000).

Almost surely, 2^117549557 is an apocalyptic number.

It is an amenable number.

117549557 is a deficient number, since it is larger than the sum of its proper divisors (7298443).

117549557 is a wasteful number, since it uses less digits than its factorization.

117549557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 796.

The product of its digits is 220500, while the sum is 44.

The square root of 117549557 is about 10842.0273473184. The cubic root of 117549557 is about 489.8619033302.

The spelling of 117549557 in words is "one hundred seventeen million, five hundred forty-nine thousand, five hundred fifty-seven".