117001521 has 48 divisors (see below), whose sum is σ = 209104896. Its totient is φ = 61388928.

The previous prime is 117001519. The next prime is 117001541. The reversal of 117001521 is 125100711.

It is a happy number.

It is not a de Polignac number, because 117001521 - 2¹ = 117001519 is a prime.

117001521 is a modest number, since divided by 1521 gives 117 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 117001494 and 117001503.

It is not an unprimeable number, because it can be changed into a prime (117001501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 305296 + ... + 305678.

It is an arithmetic number, because the mean of its divisors is an integer number (4356352).

Almost surely, 2^117001521 is an apocalyptic number.

It is an amenable number.

117001521 is a deficient number, since it is larger than the sum of its proper divisors (92103375).

117001521 is a wasteful number, since it uses less digits than its factorization.

117001521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 779 counting only the distinct ones).

The product of its (nonzero) digits is 70, while the sum is 18.

The square root of 117001521 is about 10816.7241344133. The cubic root of 117001521 is about 489.0994440634.

The spelling of 117001521 in words is "one hundred seventeen million, one thousand, five hundred twenty-one".