117873081 has 12 divisors (see below), whose sum is σ = 176132580. Its totient is φ = 75872160.

The previous prime is 117873079. The next prime is 117873101. The reversal of 117873081 is 180378711.

It can be written as a sum of positive squares in 2 ways, for example, as 38378025 + 79495056 = 6195^2 + 8916^2 .

It is not a de Polignac number, because 117873081 - 2¹ = 117873079 is a prime.

It is a super-2 number, since 2×117873081² = 27788126448865122, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (117873001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 225550 + ... + 226071.

It is an arithmetic number, because the mean of its divisors is an integer number (14677715).

Almost surely, 2^117873081 is an apocalyptic number.

It is an amenable number.

117873081 is a deficient number, since it is larger than the sum of its proper divisors (58259499).

117873081 is a wasteful number, since it uses less digits than its factorization.

117873081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451656 (or 451653 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The square root of 117873081 is about 10856.9369989883. The cubic root of 117873081 is about 490.3108966882.

The spelling of 117873081 in words is "one hundred seventeen million, eight hundred seventy-three thousand, eighty-one".