1262313641 has 2 divisors, whose sum is σ = 1262313642. Its totient is φ = 1262313640.

The previous prime is 1262313629. The next prime is 1262313691. The reversal of 1262313641 is 1463132621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1239321616 + 22992025 = 35204^2 + 4795^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262313641 - 2¹⁰ = 1262312617 is a prime.

It is not a weakly prime, because it can be changed into another prime (1262313691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631156820 + 631156821.

It is an arithmetic number, because the mean of its divisors is an integer number (631156821).

Almost surely, 2^1262313641 is an apocalyptic number.

It is an amenable number.

1262313641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262313641 is an equidigital number, since it uses as much as digits as its factorization.

1262313641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 29.

The square root of 1262313641 is about 35529.0534774007. The cubic root of 1262313641 is about 1080.7429846893.

The spelling of 1262313641 in words is "one billion, two hundred sixty-two million, three hundred thirteen thousand, six hundred forty-one".