286303231 has 2 divisors, whose sum is σ = 286303232. Its totient is φ = 286303230.

The previous prime is 286303211. The next prime is 286303243. The reversal of 286303231 is 132303682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 286303231 - 2⁹ = 286302719 is a prime.

It is a super-2 number, since 2×286303231² = 163939080162078722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 286303231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286303201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143151615 + 143151616.

It is an arithmetic number, because the mean of its divisors is an integer number (143151616).

Almost surely, 2^286303231 is an apocalyptic number.

286303231 is a deficient number, since it is larger than the sum of its proper divisors (1).

286303231 is an equidigital number, since it uses as much as digits as its factorization.

286303231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 286303231 is about 16920.4973626664. The cubic root of 286303231 is about 659.0859945360.

The spelling of 286303231 in words is "two hundred eighty-six million, three hundred three thousand, two hundred thirty-one".