115404231 has 4 divisors (see below), whose sum is σ = 153872312. Its totient is φ = 76936152.

The previous prime is 115404209. The next prime is 115404259. The reversal of 115404231 is 132404511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132404511 = 3 ⋅44134837.

It is not a de Polignac number, because 115404231 - 2⁵ = 115404199 is a prime.

It is a super-2 number, since 2×115404231² = 26636273065402722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115404198 and 115404207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115404281) 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, 19234036 + ... + 19234041.

It is an arithmetic number, because the mean of its divisors is an integer number (38468078).

Almost surely, 2^115404231 is an apocalyptic number.

115404231 is a deficient number, since it is larger than the sum of its proper divisors (38468081).

115404231 is an equidigital number, since it uses as much as digits as its factorization.

115404231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38468080.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 115404231 is about 10742.6361289955. The cubic root of 115404231 is about 486.8635302153.

Adding to 115404231 its reverse (132404511), we get a palindrome (247808742).

The spelling of 115404231 in words is "one hundred fifteen million, four hundred four thousand, two hundred thirty-one".