249498923 has 2 divisors, whose sum is σ = 249498924. Its totient is φ = 249498922.

The previous prime is 249498911. The next prime is 249498959. The reversal of 249498923 is 329894942.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249498923 - 2¹⁴ = 249482539 is a prime.

It is not a weakly prime, because it can be changed into another prime (249498523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124749461 + 124749462.

It is an arithmetic number, because the mean of its divisors is an integer number (124749462).

Almost surely, 2^249498923 is an apocalyptic number.

249498923 is a deficient number, since it is larger than the sum of its proper divisors (1).

249498923 is an equidigital number, since it uses as much as digits as its factorization.

249498923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1119744, while the sum is 50.

The square root of 249498923 is about 15795.5349070552. The cubic root of 249498923 is about 629.5393651374.

The spelling of 249498923 in words is "two hundred forty-nine million, four hundred ninety-eight thousand, nine hundred twenty-three".