249913319 has 2 divisors, whose sum is σ = 249913320. Its totient is φ = 249913318.

The previous prime is 249913273. The next prime is 249913343. The reversal of 249913319 is 913319942.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 249913319 - 2⁸ = 249913063 is a prime.

It is a super-2 number, since 2×249913319² = 124913334027191522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249913019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124956659 + 124956660.

It is an arithmetic number, because the mean of its divisors is an integer number (124956660).

Almost surely, 2^249913319 is an apocalyptic number.

249913319 is a deficient number, since it is larger than the sum of its proper divisors (1).

249913319 is an equidigital number, since it uses as much as digits as its factorization.

249913319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 249913319 is about 15808.6469693013. The cubic root of 249913319 is about 629.8877090534.

The spelling of 249913319 in words is "two hundred forty-nine million, nine hundred thirteen thousand, three hundred nineteen".