1276057316 has 12 divisors (see below), whose sum is σ = 2234449980. Its totient is φ = 637643040.

The previous prime is 1276057313. The next prime is 1276057337. The reversal of 1276057316 is 6137506721.

It can be written as a sum of positive squares in 2 ways, for example, as 918696100 + 357361216 = 30310^2 + 18904^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1276057316.

It is not an unprimeable number, because it can be changed into a prime (1276057313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88895 + ... + 102246.

It is an arithmetic number, because the mean of its divisors is an integer number (186204165).

Almost surely, 2^1276057316 is an apocalyptic number.

It is an amenable number.

1276057316 is a deficient number, since it is larger than the sum of its proper divisors (958392664).

1276057316 is a wasteful number, since it uses less digits than its factorization.

1276057316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192814 (or 192812 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 1276057316 is about 35721.9444599535. The cubic root of 1276057316 is about 1084.6510989275.

The spelling of 1276057316 in words is "one billion, two hundred seventy-six million, fifty-seven thousand, three hundred sixteen".