1252682261 has 2 divisors, whose sum is σ = 1252682262. Its totient is φ = 1252682260.

The previous prime is 1252682251. The next prime is 1252682267. The reversal of 1252682261 is 1622862521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1250966161 + 1716100 = 35369^2 + 1310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252682261 - 2¹⁰ = 1252681237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252682267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626341130 + 626341131.

It is an arithmetic number, because the mean of its divisors is an integer number (626341131).

Almost surely, 2^1252682261 is an apocalyptic number.

It is an amenable number.

1252682261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252682261 is an equidigital number, since it uses as much as digits as its factorization.

1252682261 is an evil number, because the sum of its binary digits is even.

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

The square root of 1252682261 is about 35393.2516307841. The cubic root of 1252682261 is about 1077.9872953757.

The spelling of 1252682261 in words is "one billion, two hundred fifty-two million, six hundred eighty-two thousand, two hundred sixty-one".