115171956 has 60 divisors (see below), whose sum is σ = 302206212. Its totient is φ = 38247552.

The previous prime is 115171933. The next prime is 115171997. The reversal of 115171956 is 659171511.

115171956 = T₄₃₁ + T₄₃₂ + ... + T₉₁₆.

It can be written as a sum of positive squares in 2 ways, for example, as 55264356 + 59907600 = 7434^2 + 7740^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 115171956.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 120376 + ... + 121328.

Almost surely, 2^115171956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115171956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151103106).

115171956 is an abundant number, since it is smaller than the sum of its proper divisors (187034256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115171956 is a wasteful number, since it uses less digits than its factorization.

115171956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342 (or 1331 counting only the distinct ones).

The product of its digits is 9450, while the sum is 36.

The square root of 115171956 is about 10731.8197897654. The cubic root of 115171956 is about 486.5366728136.

The spelling of 115171956 in words is "one hundred fifteen million, one hundred seventy-one thousand, nine hundred fifty-six".