117033921 has 12 divisors (see below), whose sum is σ = 169296660. Its totient is φ = 77908320.

The previous prime is 117033881. The next prime is 117033941. The reversal of 117033921 is 129330711.

It can be written as a sum of positive squares in 2 ways, for example, as 13727025 + 103306896 = 3705^2 + 10164^2 .

It is not a de Polignac number, because 117033921 - 2¹⁰ = 117032897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (117033941) 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, 2790 + ... + 15551.

It is an arithmetic number, because the mean of its divisors is an integer number (14108055).

Almost surely, 2^117033921 is an apocalyptic number.

It is an amenable number.

117033921 is a deficient number, since it is larger than the sum of its proper divisors (52262739).

117033921 is a wasteful number, since it uses less digits than its factorization.

117033921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19056 (or 19053 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 117033921 is about 10818.2217115384. The cubic root of 117033921 is about 489.1445869508.

The spelling of 117033921 in words is "one hundred seventeen million, thirty-three thousand, nine hundred twenty-one".