1296141263 has 2 divisors, whose sum is σ = 1296141264. Its totient is φ = 1296141262.

The previous prime is 1296141233. The next prime is 1296141269. The reversal of 1296141263 is 3621416921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1296141263 - 2²² = 1291946959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1296141269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648070631 + 648070632.

It is an arithmetic number, because the mean of its divisors is an integer number (648070632).

Almost surely, 2^1296141263 is an apocalyptic number.

1296141263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296141263 is an equidigital number, since it uses as much as digits as its factorization.

1296141263 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 35.

The square root of 1296141263 is about 36001.9619326503. The cubic root of 1296141263 is about 1090.3119672086.

The spelling of 1296141263 in words is "one billion, two hundred ninety-six million, one hundred forty-one thousand, two hundred sixty-three".