249354319 has 2 divisors, whose sum is σ = 249354320. Its totient is φ = 249354318.

The previous prime is 249354269. The next prime is 249354337. The reversal of 249354319 is 913453942.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249354319 is a prime.

It is a super-2 number, since 2×249354319² = 124355152807907522, which contains 22 as substring.

It is a Chen prime.

It is equal to p_13645975 and since 249354319 and 13645975 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249354379) 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, 124677159 + 124677160.

It is an arithmetic number, because the mean of its divisors is an integer number (124677160).

Almost surely, 2^249354319 is an apocalyptic number.

249354319 is a deficient number, since it is larger than the sum of its proper divisors (1).

249354319 is an equidigital number, since it uses as much as digits as its factorization.

249354319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 40.

The square root of 249354319 is about 15790.9568741099. The cubic root of 249354319 is about 629.4177193176.

The spelling of 249354319 in words is "two hundred forty-nine million, three hundred fifty-four thousand, three hundred nineteen".