1313087 has 2 divisors, whose sum is σ = 1313088. Its totient is φ = 1313086.

The previous prime is 1313083. The next prime is 1313141. The reversal of 1313087 is 7803131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1313087 - 2² = 1313083 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 (1313083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656543 + 656544.

It is an arithmetic number, because the mean of its divisors is an integer number (656544).

2^1313087 is an apocalyptic number.

1313087 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313087 is an equidigital number, since it uses as much as digits as its factorization.

1313087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1313087 is about 1145.9000829043. The cubic root of 1313087 is about 109.5042984628.

The spelling of 1313087 in words is "one million, three hundred thirteen thousand, eighty-seven".