287144959 has 2 divisors, whose sum is σ = 287144960. Its totient is φ = 287144958.

The previous prime is 287144953. The next prime is 287144969. The reversal of 287144959 is 959441782.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 287144959 - 2³ = 287144951 is a prime.

It is a super-2 number, since 2×287144959² = 164904454958223362, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (287144951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143572479 + 143572480.

It is an arithmetic number, because the mean of its divisors is an integer number (143572480).

Almost surely, 2^287144959 is an apocalyptic number.

287144959 is a deficient number, since it is larger than the sum of its proper divisors (1).

287144959 is an equidigital number, since it uses as much as digits as its factorization.

287144959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 49.

The square root of 287144959 is about 16945.3521356152. The cubic root of 287144959 is about 659.7312641765.

The spelling of 287144959 in words is "two hundred eighty-seven million, one hundred forty-four thousand, nine hundred fifty-nine".