117149521 has 8 divisors (see below), whose sum is σ = 120219264. Its totient is φ = 114103920.

The previous prime is 117149489. The next prime is 117149537. The reversal of 117149521 is 125941711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117149521 - 2⁵ = 117149489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117149551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4011 + ... + 15823.

It is an arithmetic number, because the mean of its divisors is an integer number (15027408).

Almost surely, 2^117149521 is an apocalyptic number.

It is an amenable number.

117149521 is a deficient number, since it is larger than the sum of its proper divisors (3069743).

117149521 is a wasteful number, since it uses less digits than its factorization.

117149521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12071.

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

The square root of 117149521 is about 10823.5632302860. The cubic root of 117149521 is about 489.3055844534.

The spelling of 117149521 in words is "one hundred seventeen million, one hundred forty-nine thousand, five hundred twenty-one".