231496249 has 2 divisors, whose sum is σ = 231496250. Its totient is φ = 231496248.

The previous prime is 231496231. The next prime is 231496253. The reversal of 231496249 is 942694132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230068224 + 1428025 = 15168^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 231496249 - 2⁵ = 231496217 is a prime.

It is not a weakly prime, because it can be changed into another prime (231496229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115748124 + 115748125.

It is an arithmetic number, because the mean of its divisors is an integer number (115748125).

Almost surely, 2^231496249 is an apocalyptic number.

It is an amenable number.

231496249 is a deficient number, since it is larger than the sum of its proper divisors (1).

231496249 is an equidigital number, since it uses as much as digits as its factorization.

231496249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 231496249 is about 15215.0007886953. Note that the first 3 decimals coincide. The cubic root of 231496249 is about 614.0183064566.

The spelling of 231496249 in words is "two hundred thirty-one million, four hundred ninety-six thousand, two hundred forty-nine".