1252863071 has 2 divisors, whose sum is σ = 1252863072. Its totient is φ = 1252863070.

The previous prime is 1252863049. The next prime is 1252863103. The reversal of 1252863071 is 1703682521.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1252863071 - 2¹⁸ = 1252600927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252863571) 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, 626431535 + 626431536.

It is an arithmetic number, because the mean of its divisors is an integer number (626431536).

Almost surely, 2^1252863071 is an apocalyptic number.

1252863071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252863071 is an equidigital number, since it uses as much as digits as its factorization.

1252863071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 1252863071 is about 35395.8058391104. The cubic root of 1252863071 is about 1078.0391578237.

The spelling of 1252863071 in words is "one billion, two hundred fifty-two million, eight hundred sixty-three thousand, seventy-one".