1252708049 has 2 divisors, whose sum is σ = 1252708050. Its totient is φ = 1252708048.

The previous prime is 1252708033. The next prime is 1252708073. The reversal of 1252708049 is 9408072521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 745017025 + 507691024 = 27295^2 + 22532^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252708049 - 2⁴ = 1252708033 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252708549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626354024 + 626354025.

It is an arithmetic number, because the mean of its divisors is an integer number (626354025).

Almost surely, 2^1252708049 is an apocalyptic number.

It is an amenable number.

1252708049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252708049 is an equidigital number, since it uses as much as digits as its factorization.

1252708049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 1252708049 is about 35393.6159356458. The cubic root of 1252708049 is about 1077.9946925549.

The spelling of 1252708049 in words is "one billion, two hundred fifty-two million, seven hundred eight thousand, forty-nine".