1276988459 has 2 divisors, whose sum is σ = 1276988460. Its totient is φ = 1276988458.

The previous prime is 1276988431. The next prime is 1276988477. The reversal of 1276988459 is 9548896721.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1276988459 - 2⁸ = 1276988203 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1276988398 and 1276988407.

It is not a weakly prime, because it can be changed into another prime (1276988159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 638494229 + 638494230.

It is an arithmetic number, because the mean of its divisors is an integer number (638494230).

Almost surely, 2^1276988459 is an apocalyptic number.

1276988459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1276988459 is an equidigital number, since it uses as much as digits as its factorization.

1276988459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 59.

The square root of 1276988459 is about 35734.9752903231. The cubic root of 1276988459 is about 1084.9148592114.

The spelling of 1276988459 in words is "one billion, two hundred seventy-six million, nine hundred eighty-eight thousand, four hundred fifty-nine".