1273914469 has 2 divisors, whose sum is σ = 1273914470. Its totient is φ = 1273914468.

The previous prime is 1273914457. The next prime is 1273914479. The reversal of 1273914469 is 9644193721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1078334244 + 195580225 = 32838^2 + 13985^2 .

It is a cyclic number.

It is not a de Polignac number, because 1273914469 - 2¹⁵ = 1273881701 is a prime.

It is a super-2 number, since 2×1273914469² = 3245716148655103922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273914479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636957234 + 636957235.

It is an arithmetic number, because the mean of its divisors is an integer number (636957235).

Almost surely, 2^1273914469 is an apocalyptic number.

It is an amenable number.

1273914469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273914469 is an equidigital number, since it uses as much as digits as its factorization.

1273914469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 1273914469 is about 35691.9384315282. The cubic root of 1273914469 is about 1084.0436174426.

The spelling of 1273914469 in words is "one billion, two hundred seventy-three million, nine hundred fourteen thousand, four hundred sixty-nine".