249341849 has 2 divisors, whose sum is σ = 249341850. Its totient is φ = 249341848.

The previous prime is 249341843. The next prime is 249341857. The reversal of 249341849 is 948143942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133564249 + 115777600 = 11557^2 + 10760^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-249341849 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249341843) 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, 124670924 + 124670925.

It is an arithmetic number, because the mean of its divisors is an integer number (124670925).

Almost surely, 2^249341849 is an apocalyptic number.

It is an amenable number.

249341849 is a deficient number, since it is larger than the sum of its proper divisors (1).

249341849 is an equidigital number, since it uses as much as digits as its factorization.

249341849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 44.

The square root of 249341849 is about 15790.5620229300. The cubic root of 249341849 is about 629.4072269255.

The spelling of 249341849 in words is "two hundred forty-nine million, three hundred forty-one thousand, eight hundred forty-nine".