117389545 has 24 divisors (see below), whose sum is σ = 176476104. Its totient is φ = 74301696.

The previous prime is 117389537. The next prime is 117389603. The reversal of 117389545 is 545983711.

It can be written as a sum of positive squares in 4 ways, for example, as 3732624 + 113656921 = 1932^2 + 10661^2 .

It is not a de Polignac number, because 117389545 - 2³ = 117389537 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15244 + ... + 21613.

It is an arithmetic number, because the mean of its divisors is an integer number (7353171).

Almost surely, 2^117389545 is an apocalyptic number.

It is an amenable number.

117389545 is a deficient number, since it is larger than the sum of its proper divisors (59086559).

117389545 is a wasteful number, since it uses less digits than its factorization.

117389545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36889 (or 36882 counting only the distinct ones).

The product of its digits is 151200, while the sum is 43.

The square root of 117389545 is about 10834.6455871893. The cubic root of 117389545 is about 489.6395308037.

The spelling of 117389545 in words is "one hundred seventeen million, three hundred eighty-nine thousand, five hundred forty-five".