1276948975 has 12 divisors (see below), whose sum is σ = 1587742624. Its totient is φ = 1018768320.

The previous prime is 1276948973. The next prime is 1276948991. The reversal of 1276948975 is 5798496721.

It is not a de Polignac number, because 1276948975 - 2¹ = 1276948973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1276948973) 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 in 11 ways as a sum of consecutive naturals, for example, 60414 + ... + 78763.

Almost surely, 2^1276948975 is an apocalyptic number.

1276948975 is a deficient number, since it is larger than the sum of its proper divisors (310793649).

1276948975 is a wasteful number, since it uses less digits than its factorization.

1276948975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139554 (or 139549 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 58.

The square root of 1276948975 is about 35734.4228300948. The cubic root of 1276948975 is about 1084.9036773771.

The spelling of 1276948975 in words is "one billion, two hundred seventy-six million, nine hundred forty-eight thousand, nine hundred seventy-five".