117121459 has 16 divisors (see below), whose sum is σ = 149123520. Its totient is φ = 89470080.

The previous prime is 117121457. The next prime is 117121469. The reversal of 117121459 is 954121711.

It is not a de Polignac number, because 117121459 - 2¹ = 117121457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117121459.

It is not an unprimeable number, because it can be changed into a prime (117121457) 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, 19552 + ... + 24829.

It is an arithmetic number, because the mean of its divisors is an integer number (9320220).

Almost surely, 2^117121459 is an apocalyptic number.

117121459 is a deficient number, since it is larger than the sum of its proper divisors (32002061).

117121459 is a wasteful number, since it uses less digits than its factorization.

117121459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44430.

The product of its digits is 2520, while the sum is 31.

The square root of 117121459 is about 10822.2668143047. The cubic root of 117121459 is about 489.2665119084.

The spelling of 117121459 in words is "one hundred seventeen million, one hundred twenty-one thousand, four hundred fifty-nine".