117000981 has 12 divisors (see below), whose sum is σ = 169173420. Its totient is φ = 77921280.

The previous prime is 117000967. The next prime is 117001007. The reversal of 117000981 is 189000711.

It can be written as a sum of positive squares in 2 ways, for example, as 40525956 + 76475025 = 6366^2 + 8745^2 .

It is not a de Polignac number, because 117000981 - 2⁹ = 117000469 is a prime.

It is a super-2 number, since 2×117000981² = 27378459109924722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117000901) 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, 3541 + ... + 15701.

It is an arithmetic number, because the mean of its divisors is an integer number (14097785).

Almost surely, 2^117000981 is an apocalyptic number.

It is an amenable number.

117000981 is a deficient number, since it is larger than the sum of its proper divisors (52172439).

117000981 is a wasteful number, since it uses less digits than its factorization.

117000981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13236 (or 13233 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 27.

The square root of 117000981 is about 10816.6991730380. The cubic root of 117000981 is about 489.0986916114.

The spelling of 117000981 in words is "one hundred seventeen million, nine hundred eighty-one", and thus it is an aban number.