1312877 has 2 divisors, whose sum is σ = 1312878. Its totient is φ = 1312876.

The previous prime is 1312873. The next prime is 1312889. The reversal of 1312877 is 7782131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 835396 + 477481 = 914^2 + 691^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312877 - 2² = 1312873 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656438 + 656439.

It is an arithmetic number, because the mean of its divisors is an integer number (656439).

2^1312877 is an apocalyptic number.

It is an amenable number.

1312877 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312877 is an equidigital number, since it uses as much as digits as its factorization.

1312877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2352, while the sum is 29.

The square root of 1312877 is about 1145.8084482146. The cubic root of 1312877 is about 109.4984605331.

The spelling of 1312877 in words is "one million, three hundred twelve thousand, eight hundred seventy-seven".