117861544 has 16 divisors (see below), whose sum is σ = 233990100. Its totient is φ = 55464192.

The previous prime is 117861529. The next prime is 117861547. The reversal of 117861544 is 445168711.

It can be written as a sum of positive squares in 2 ways, for example, as 111049444 + 6812100 = 10538^2 + 2610^2 .

It is not an unprimeable number, because it can be changed into a prime (117861547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433179 + ... + 433450.

Almost surely, 2^117861544 is an apocalyptic number.

It is an amenable number.

117861544 is a deficient number, since it is larger than the sum of its proper divisors (116128556).

117861544 is a wasteful number, since it uses less digits than its factorization.

117861544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866652 (or 866648 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

The square root of 117861544 is about 10856.4056667020. The cubic root of 117861544 is about 490.2948995345.

The spelling of 117861544 in words is "one hundred seventeen million, eight hundred sixty-one thousand, five hundred forty-four".