115142331 has 8 divisors (see below), whose sum is σ = 155373120. Its totient is φ = 75836552.

The previous prime is 115142327. The next prime is 115142353. The reversal of 115142331 is 133241511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115142331 - 2² = 115142327 is a prime.

It is a super-2 number, since 2×115142331² = 26515512776227122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 115142298 and 115142307.

It is not an unprimeable number, because it can be changed into a prime (115142311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230961 + ... + 231458.

It is an arithmetic number, because the mean of its divisors is an integer number (19421640).

Almost surely, 2^115142331 is an apocalyptic number.

115142331 is a deficient number, since it is larger than the sum of its proper divisors (40230789).

115142331 is an equidigital number, since it uses as much as digits as its factorization.

115142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462505.

The product of its digits is 360, while the sum is 21.

The square root of 115142331 is about 10730.4394597798. The cubic root of 115142331 is about 486.4949529208.

Adding to 115142331 its reverse (133241511), we get a palindrome (248383842).

The spelling of 115142331 in words is "one hundred fifteen million, one hundred forty-two thousand, three hundred thirty-one".