115977169 has 36 divisors (see below), whose sum is σ = 153318144. Its totient is φ = 87318000.

The previous prime is 115977157. The next prime is 115977209. The reversal of 115977169 is 961779511.

It is not a de Polignac number, because 115977169 - 2⁷ = 115977041 is a prime.

It is a super-2 number, since 2×115977169² = 26901407458509122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115977269) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 183484 + ... + 184114.

Almost surely, 2^115977169 is an apocalyptic number.

It is an amenable number.

115977169 is a deficient number, since it is larger than the sum of its proper divisors (37340975).

115977169 is a wasteful number, since it uses less digits than its factorization.

115977169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698 (or 680 counting only the distinct ones).

The product of its digits is 119070, while the sum is 46.

The square root of 115977169 is about 10769.2696595452. The cubic root of 115977169 is about 487.6678978116.

The spelling of 115977169 in words is "one hundred fifteen million, nine hundred seventy-seven thousand, one hundred sixty-nine".