115748231 has 4 divisors (see below), whose sum is σ = 117142872. Its totient is φ = 114353592.

The previous prime is 115748183. The next prime is 115748239. The reversal of 115748231 is 132847511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132847511 = 43 ⋅3089477.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115748231 is a prime.

It is a super-2 number, since 2×115748231² = 26795305959258722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115748239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697196 + ... + 697361.

It is an arithmetic number, because the mean of its divisors is an integer number (29285718).

Almost surely, 2^115748231 is an apocalyptic number.

115748231 is a deficient number, since it is larger than the sum of its proper divisors (1394641).

115748231 is an equidigital number, since it uses as much as digits as its factorization.

115748231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394640.

The product of its digits is 6720, while the sum is 32.

The square root of 115748231 is about 10758.6351829588. The cubic root of 115748231 is about 487.3468022678.

The spelling of 115748231 in words is "one hundred fifteen million, seven hundred forty-eight thousand, two hundred thirty-one".