1273674349 has 2 divisors, whose sum is σ = 1273674350. Its totient is φ = 1273674348.

The previous prime is 1273674343. The next prime is 1273674371. The reversal of 1273674349 is 9434763721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1273205124 + 469225 = 35682^2 + 685^2 .

It is an emirp because it is prime and its reverse (9434763721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1273674349 - 2⁵ = 1273674317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1273674299 and 1273674308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273674343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636837174 + 636837175.

It is an arithmetic number, because the mean of its divisors is an integer number (636837175).

Almost surely, 2^1273674349 is an apocalyptic number.

It is an amenable number.

1273674349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273674349 is an equidigital number, since it uses as much as digits as its factorization.

1273674349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 46.

The square root of 1273674349 is about 35688.5744882028. The cubic root of 1273674349 is about 1083.9755027416.

The spelling of 1273674349 in words is "one billion, two hundred seventy-three million, six hundred seventy-four thousand, three hundred forty-nine".