249037049 has 2 divisors, whose sum is σ = 249037050. Its totient is φ = 249037048.

The previous prime is 249037027. The next prime is 249037099. The reversal of 249037049 is 940730942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166590649 + 82446400 = 12907^2 + 9080^2 .

It is a cyclic number.

It is not a de Polignac number, because 249037049 - 2²⁰ = 247988473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (249037099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124518524 + 124518525.

It is an arithmetic number, because the mean of its divisors is an integer number (124518525).

Almost surely, 2^249037049 is an apocalyptic number.

It is an amenable number.

249037049 is a deficient number, since it is larger than the sum of its proper divisors (1).

249037049 is an equidigital number, since it uses as much as digits as its factorization.

249037049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 249037049 is about 15780.9077368826. The cubic root of 249037049 is about 629.1506560804.

The spelling of 249037049 in words is "two hundred forty-nine million, thirty-seven thousand, forty-nine".