117149689 has 4 divisors (see below), whose sum is σ = 117176656. Its totient is φ = 117122724.

The previous prime is 117149677. The next prime is 117149719. The reversal of 117149689 is 986941711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117149689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117149609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5319 + ... + 16204.

It is an arithmetic number, because the mean of its divisors is an integer number (29294164).

Almost surely, 2^117149689 is an apocalyptic number.

It is an amenable number.

117149689 is a deficient number, since it is larger than the sum of its proper divisors (26967).

117149689 is an equidigital number, since it uses as much as digits as its factorization.

117149689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26966.

The product of its digits is 108864, while the sum is 46.

The square root of 117149689 is about 10823.5709911286. The cubic root of 117149689 is about 489.3058183520.

The spelling of 117149689 in words is "one hundred seventeen million, one hundred forty-nine thousand, six hundred eighty-nine".