115731272 has 8 divisors (see below), whose sum is σ = 216996150. Its totient is φ = 57865632.

The previous prime is 115731269. The next prime is 115731283. The reversal of 115731272 is 272137511.

It can be written as a sum of positive squares in only one way, i.e., 59691076 + 56040196 = 7726^2 + 7486^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7233197 + ... + 7233212.

Almost surely, 2^115731272 is an apocalyptic number.

It is an amenable number.

115731272 is a deficient number, since it is larger than the sum of its proper divisors (101264878).

115731272 is a wasteful number, since it uses less digits than its factorization.

115731272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14466415 (or 14466411 counting only the distinct ones).

The product of its digits is 2940, while the sum is 29.

The square root of 115731272 is about 10757.8469964952. The cubic root of 115731272 is about 487.3229996921.

Adding to 115731272 its reverse (272137511), we get a palindrome (387868783).

The spelling of 115731272 in words is "one hundred fifteen million, seven hundred thirty-one thousand, two hundred seventy-two".