351287 has 2 divisors, whose sum is σ = 351288. Its totient is φ = 351286.

The previous prime is 351269. The next prime is 351289. The reversal of 351287 is 782153.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 351287 - 2⁶ = 351223 is a prime.

Together with 351289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351289) 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, 175643 + 175644.

It is an arithmetic number, because the mean of its divisors is an integer number (175644).

2³⁵¹²⁸⁷ is an apocalyptic number.

351287 is a deficient number, since it is larger than the sum of its proper divisors (1).

351287 is an equidigital number, since it uses as much as digits as its factorization.

351287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1680, while the sum is 26.

The square root of 351287 is about 592.6946937505. The cubic root of 351287 is about 70.5592614068.

The spelling of 351287 in words is "three hundred fifty-one thousand, two hundred eighty-seven".