249004513 has 2 divisors, whose sum is σ = 249004514. Its totient is φ = 249004512.

The previous prime is 249004499. The next prime is 249004523. The reversal of 249004513 is 315400942.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145636624 + 103367889 = 12068^2 + 10167^2 .

It is a cyclic number.

It is not a de Polignac number, because 249004513 - 2⁹ = 249004001 is a prime.

It is not a weakly prime, because it can be changed into another prime (249004523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124502256 + 124502257.

It is an arithmetic number, because the mean of its divisors is an integer number (124502257).

Almost surely, 2^249004513 is an apocalyptic number.

It is an amenable number.

249004513 is a deficient number, since it is larger than the sum of its proper divisors (1).

249004513 is an equidigital number, since it uses as much as digits as its factorization.

249004513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 249004513 is about 15779.8768372887. The cubic root of 249004513 is about 629.1232559574.

The spelling of 249004513 in words is "two hundred forty-nine million, four thousand, five hundred thirteen".