1292813 has 2 divisors, whose sum is σ = 1292814. Its totient is φ = 1292812.

The previous prime is 1292801. The next prime is 1292831. The reversal of 1292813 is 3182921.

Together with next prime (1292831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 31684 = 1123^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 1292813 - 2¹⁶ = 1227277 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 (1292843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 646406 + 646407.

It is an arithmetic number, because the mean of its divisors is an integer number (646407).

2^1292813 is an apocalyptic number.

It is an amenable number.

1292813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1292813 is an equidigital number, since it uses as much as digits as its factorization.

1292813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 26.

The square root of 1292813 is about 1137.0193489998. The cubic root of 1292813 is about 108.9377924086.

The spelling of 1292813 in words is "one million, two hundred ninety-two thousand, eight hundred thirteen".