117981069 has 8 divisors (see below), whose sum is σ = 157360032. Its totient is φ = 78628080.

The previous prime is 117981047. The next prime is 117981079. The reversal of 117981069 is 960189711.

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

It is not a de Polignac number, because 117981069 - 2⁸ = 117980813 is a prime.

It is a super-2 number, since 2×117981069² = 27839065284765522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 117981069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117981079) 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, 10354 + ... + 18524.

It is an arithmetic number, because the mean of its divisors is an integer number (19670004).

Almost surely, 2^117981069 is an apocalyptic number.

It is an amenable number.

117981069 is a deficient number, since it is larger than the sum of its proper divisors (39378963).

117981069 is an equidigital number, since it uses as much as digits as its factorization.

117981069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12987.

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 117981069 is about 10861.9090863439. The cubic root of 117981069 is about 490.4605817895.

The spelling of 117981069 in words is "one hundred seventeen million, nine hundred eighty-one thousand, sixty-nine".