115556769 has 12 divisors (see below), whose sum is σ = 176734116. Its totient is φ = 72506112.

The previous prime is 115556767. The next prime is 115556773. The reversal of 115556769 is 967655511.

It can be written as a sum of positive squares in 2 ways, for example, as 105822369 + 9734400 = 10287^2 + 3120^2 .

It is not a de Polignac number, because 115556769 - 2¹ = 115556767 is a prime.

It is a super-2 number, since 2×115556769² = 26706733723438722, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (115556767) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377484 + ... + 377789.

It is an arithmetic number, because the mean of its divisors is an integer number (14727843).

Almost surely, 2^115556769 is an apocalyptic number.

It is an amenable number.

115556769 is a deficient number, since it is larger than the sum of its proper divisors (61177347).

115556769 is a wasteful number, since it uses less digits than its factorization.

115556769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755296 (or 755293 counting only the distinct ones).

The product of its digits is 283500, while the sum is 45.

The square root of 115556769 is about 10749.7334385556. The cubic root of 115556769 is about 487.0779431878.

The spelling of 115556769 in words is "one hundred fifteen million, five hundred fifty-six thousand, seven hundred sixty-nine".