115523431 has 8 divisors (see below), whose sum is σ = 116798864. Its totient is φ = 114255360.

The previous prime is 115523417. The next prime is 115523519. The reversal of 115523431 is 134325511.

It is a happy number.

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 115523431 - 2⁵ = 115523399 is a prime.

It is a super-2 number, since 2×115523431² = 26691326220023522, 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 = 115523396 and 115523405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115523131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33280 + ... + 36586.

It is an arithmetic number, because the mean of its divisors is an integer number (14599858).

Almost surely, 2^115523431 is an apocalyptic number.

115523431 is a deficient number, since it is larger than the sum of its proper divisors (1275433).

115523431 is a wasteful number, since it uses less digits than its factorization.

115523431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3681.

The product of its digits is 1800, while the sum is 25.

The square root of 115523431 is about 10748.1826835982. The cubic root of 115523431 is about 487.0310982001.

Adding to 115523431 its reverse (134325511), we get a palindrome (249848942).

The spelling of 115523431 in words is "one hundred fifteen million, five hundred twenty-three thousand, four hundred thirty-one".