1276331485 has 16 divisors (see below), whose sum is σ = 1799360640. Its totient is φ = 856837440.

The previous prime is 1276331477. The next prime is 1276331509. The reversal of 1276331485 is 5841336721.

It is not a de Polignac number, because 1276331485 - 2³ = 1276331477 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 891825 + ... + 893254.

It is an arithmetic number, because the mean of its divisors is an integer number (112460040).

Almost surely, 2^1276331485 is an apocalyptic number.

It is an amenable number.

1276331485 is a deficient number, since it is larger than the sum of its proper divisors (523029155).

1276331485 is a wasteful number, since it uses less digits than its factorization.

1276331485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785108.

The product of its digits is 120960, while the sum is 40.

The square root of 1276331485 is about 35725.7817969040. The cubic root of 1276331485 is about 1084.7287747519.

The spelling of 1276331485 in words is "one billion, two hundred seventy-six million, three hundred thirty-one thousand, four hundred eighty-five".