117057081 has 16 divisors (see below), whose sum is σ = 165925440. Its totient is φ = 73195200.

The previous prime is 117057077. The next prime is 117057133. The reversal of 117057081 is 180750711.

It is a happy number.

It is not a de Polignac number, because 117057081 - 2² = 117057077 is a prime.

It is a super-2 number, since 2×117057081² = 27404720424481122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (117057001) 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, 4410 + ... + 15923.

It is an arithmetic number, because the mean of its divisors is an integer number (10370340).

Almost surely, 2^117057081 is an apocalyptic number.

It is an amenable number.

117057081 is a deficient number, since it is larger than the sum of its proper divisors (48868359).

117057081 is a wasteful number, since it uses less digits than its factorization.

117057081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20456.

The product of its (nonzero) digits is 1960, while the sum is 30.

The square root of 117057081 is about 10819.2920748079. The cubic root of 117057081 is about 489.1768506493.

The spelling of 117057081 in words is "one hundred seventeen million, fifty-seven thousand, eighty-one".