3120287 has 2 divisors, whose sum is σ = 3120288. Its totient is φ = 3120286.

The previous prime is 3120281. The next prime is 3120311. The reversal of 3120287 is 7820213.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3120287 - 2²⁰ = 2071711 is a prime.

It is a Chen prime.

It is equal to p₂₂₄₈₆₁ and since 3120287 and 224861 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560143 + 1560144.

It is an arithmetic number, because the mean of its divisors is an integer number (1560144).

Almost surely, 2^3120287 is an apocalyptic number.

3120287 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120287 is an equidigital number, since it uses as much as digits as its factorization.

3120287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3120287 is about 1766.4334122746. The cubic root of 3120287 is about 146.1273518208.

The spelling of 3120287 in words is "three million, one hundred twenty thousand, two hundred eighty-seven".