249349339 has 2 divisors, whose sum is σ = 249349340. Its totient is φ = 249349338.

The previous prime is 249349297. The next prime is 249349343. The reversal of 249349339 is 933943942.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249349339 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249349379) 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, 124674669 + 124674670.

It is an arithmetic number, because the mean of its divisors is an integer number (124674670).

Almost surely, 2^249349339 is an apocalyptic number.

249349339 is a deficient number, since it is larger than the sum of its proper divisors (1).

249349339 is an equidigital number, since it uses as much as digits as its factorization.

249349339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 629856, while the sum is 46.

The square root of 249349339 is about 15790.7991881348. The cubic root of 249349339 is about 629.4135291340.

The spelling of 249349339 in words is "two hundred forty-nine million, three hundred forty-nine thousand, three hundred thirty-nine".