1255242349 has 2 divisors, whose sum is σ = 1255242350. Its totient is φ = 1255242348.

The previous prime is 1255242337. The next prime is 1255242431. The reversal of 1255242349 is 9432425521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1243972900 + 11269449 = 35270^2 + 3357^2 .

It is a cyclic number.

It is not a de Polignac number, because 1255242349 - 2¹⁹ = 1254718061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1255242749) 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, 627621174 + 627621175.

It is an arithmetic number, because the mean of its divisors is an integer number (627621175).

Almost surely, 2^1255242349 is an apocalyptic number.

It is an amenable number.

1255242349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1255242349 is an equidigital number, since it uses as much as digits as its factorization.

1255242349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 37.

The square root of 1255242349 is about 35429.3995009794. The cubic root of 1255242349 is about 1078.7211511830.

The spelling of 1255242349 in words is "one billion, two hundred fifty-five million, two hundred forty-two thousand, three hundred forty-nine".