231088249 has 4 divisors (see below), whose sum is σ = 264100864. Its totient is φ = 198075636.

The previous prime is 231088223. The next prime is 231088261. The reversal of 231088249 is 942880132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231088249 - 2¹⁹ = 230563961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231088549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16506297 + ... + 16506310.

It is an arithmetic number, because the mean of its divisors is an integer number (66025216).

Almost surely, 2^231088249 is an apocalyptic number.

It is an amenable number.

231088249 is a deficient number, since it is larger than the sum of its proper divisors (33012615).

231088249 is an equidigital number, since it uses as much as digits as its factorization.

231088249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33012614.

The product of its (nonzero) digits is 27648, while the sum is 37.

The square root of 231088249 is about 15201.5870553045. The cubic root of 231088249 is about 613.6573693065.

The spelling of 231088249 in words is "two hundred thirty-one million, eighty-eight thousand, two hundred forty-nine".