115210231 has 4 divisors (see below), whose sum is σ = 115316352. Its totient is φ = 115104112.

The previous prime is 115210223. The next prime is 115210247. The reversal of 115210231 is 132012511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 115210231 - 2³ = 115210223 is a prime.

It is a super-2 number, since 2×115210231² = 26546794654146722, 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 (115210031) 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, 51415 + ... + 53608.

It is an arithmetic number, because the mean of its divisors is an integer number (28829088).

Almost surely, 2^115210231 is an apocalyptic number.

115210231 is a deficient number, since it is larger than the sum of its proper divisors (106121).

115210231 is a wasteful number, since it uses less digits than its factorization.

115210231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106120.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 115210231 is about 10733.6028899899. The cubic root of 115210231 is about 486.5905636196.

Adding to 115210231 its reverse (132012511), we get a palindrome (247222742).

The spelling of 115210231 in words is "one hundred fifteen million, two hundred ten thousand, two hundred thirty-one".