1262428459 has 2 divisors, whose sum is σ = 1262428460. Its totient is φ = 1262428458.

The previous prime is 1262428397. The next prime is 1262428463. The reversal of 1262428459 is 9548242621.

It is a strong prime.

It is an emirp because it is prime and its reverse (9548242621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1262428459 - 2¹¹ = 1262426411 is a prime.

It is a super-2 number, since 2×1262428459² = 3187451228186229362, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1262428259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631214229 + 631214230.

It is an arithmetic number, because the mean of its divisors is an integer number (631214230).

Almost surely, 2^1262428459 is an apocalyptic number.

1262428459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262428459 is an equidigital number, since it uses as much as digits as its factorization.

1262428459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 43.

The square root of 1262428459 is about 35530.6692731786. The cubic root of 1262428459 is about 1080.7757512385.

The spelling of 1262428459 in words is "one billion, two hundred sixty-two million, four hundred twenty-eight thousand, four hundred fifty-nine".