313087 has 2 divisors, whose sum is σ = 313088. Its totient is φ = 313086.

The previous prime is 313081. The next prime is 313109. The reversal of 313087 is 780313.

It is an a-pointer prime, because the next prime (313109) can be obtained adding 313087 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156543 + 156544.

It is an arithmetic number, because the mean of its divisors is an integer number (156544).

2³¹³⁰⁸⁷ is an apocalyptic number.

313087 is a deficient number, since it is larger than the sum of its proper divisors (1).

313087 is an equidigital number, since it uses as much as digits as its factorization.

313087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 313087 is about 559.5417768138. The cubic root of 313087 is about 67.9029035222.

The spelling of 313087 in words is "three hundred thirteen thousand, eighty-seven".