117528649 has 8 divisors (see below), whose sum is σ = 136595520. Its totient is φ = 99031056.

The previous prime is 117528617. The next prime is 117528679. The reversal of 117528649 is 946825711.

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 117528649 - 2⁵ = 117528617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117528679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141874 + ... + 142699.

It is an arithmetic number, because the mean of its divisors is an integer number (17074440).

Almost surely, 2^117528649 is an apocalyptic number.

It is an amenable number.

117528649 is a deficient number, since it is larger than the sum of its proper divisors (19066871).

117528649 is an equidigital number, since it uses as much as digits as its factorization.

117528649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284639.

The product of its digits is 120960, while the sum is 43.

The square root of 117528649 is about 10841.0630936269. The cubic root of 117528649 is about 489.8328584455.

The spelling of 117528649 in words is "one hundred seventeen million, five hundred twenty-eight thousand, six hundred forty-nine".