1262725459 has 2 divisors, whose sum is σ = 1262725460. Its totient is φ = 1262725458.

The previous prime is 1262725441. The next prime is 1262725481. The reversal of 1262725459 is 9545272621.

It is a weak prime.

It is an emirp because it is prime and its reverse (9545272621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1262725459 is a prime.

It is not a weakly prime, because it can be changed into another prime (1262725489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631362729 + 631362730.

It is an arithmetic number, because the mean of its divisors is an integer number (631362730).

Almost surely, 2^1262725459 is an apocalyptic number.

1262725459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262725459 is an equidigital number, since it uses as much as digits as its factorization.

1262725459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 302400, while the sum is 43.

The square root of 1262725459 is about 35534.8485152252. The cubic root of 1262725459 is about 1080.8604993357.

The spelling of 1262725459 in words is "one billion, two hundred sixty-two million, seven hundred twenty-five thousand, four hundred fifty-nine".