1252822049 has 2 divisors, whose sum is σ = 1252822050. Its totient is φ = 1252822048.

The previous prime is 1252822013. The next prime is 1252822097. The reversal of 1252822049 is 9402282521.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1055925025 + 196897024 = 32495^2 + 14032^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252822049 - 2⁸ = 1252821793 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252822009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626411024 + 626411025.

It is an arithmetic number, because the mean of its divisors is an integer number (626411025).

Almost surely, 2^1252822049 is an apocalyptic number.

It is an amenable number.

1252822049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252822049 is an equidigital number, since it uses as much as digits as its factorization.

1252822049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 1252822049 is about 35395.2263589315. The cubic root of 1252822049 is about 1078.0273917587.

The spelling of 1252822049 in words is "one billion, two hundred fifty-two million, eight hundred twenty-two thousand, forty-nine".