286164493 has 2 divisors, whose sum is σ = 286164494. Its totient is φ = 286164492.

The previous prime is 286164469. The next prime is 286164509. The reversal of 286164493 is 394461682.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 263153284 + 23011209 = 16222^2 + 4797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-286164493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286164433) 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, 143082246 + 143082247.

It is an arithmetic number, because the mean of its divisors is an integer number (143082247).

Almost surely, 2^286164493 is an apocalyptic number.

It is an amenable number.

286164493 is a deficient number, since it is larger than the sum of its proper divisors (1).

286164493 is an equidigital number, since it uses as much as digits as its factorization.

286164493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 43.

The square root of 286164493 is about 16916.3971636989. The cubic root of 286164493 is about 658.9795164655.

The spelling of 286164493 in words is "two hundred eighty-six million, one hundred sixty-four thousand, four hundred ninety-three".