1252441277 has 2 divisors, whose sum is σ = 1252441278. Its totient is φ = 1252441276.

The previous prime is 1252441237. The next prime is 1252441319. The reversal of 1252441277 is 7721442521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1160492356 + 91948921 = 34066^2 + 9589^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252441277 - 2⁶ = 1252441213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252441237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626220638 + 626220639.

It is an arithmetic number, because the mean of its divisors is an integer number (626220639).

Almost surely, 2^1252441277 is an apocalyptic number.

It is an amenable number.

1252441277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252441277 is an equidigital number, since it uses as much as digits as its factorization.

1252441277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31360, while the sum is 35.

The square root of 1252441277 is about 35389.8470892430. The cubic root of 1252441277 is about 1077.9181652223.

Adding to 1252441277 its reverse (7721442521), we get a palindrome (8973883798).

The spelling of 1252441277 in words is "one billion, two hundred fifty-two million, four hundred forty-one thousand, two hundred seventy-seven".