1276904151 has 12 divisors (see below), whose sum is σ = 1894266712. Its totient is φ = 828261936.

The previous prime is 1276904149. The next prime is 1276904171. The reversal of 1276904151 is 1514096721.

It is not a de Polignac number, because 1276904151 - 2¹ = 1276904149 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 (1276904171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1916941 + ... + 1917606.

Almost surely, 2^1276904151 is an apocalyptic number.

1276904151 is a deficient number, since it is larger than the sum of its proper divisors (617362561).

1276904151 is a wasteful number, since it uses less digits than its factorization.

1276904151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834590 (or 3834587 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 1276904151 is about 35733.7956422208. The cubic root of 1276904151 is about 1084.8909829802.

It can be divided in two parts, 127690 and 4151, that added together give a triangular number (131841 = T₅₁₃).

The spelling of 1276904151 in words is "one billion, two hundred seventy-six million, nine hundred four thousand, one hundred fifty-one".