286144987 has 2 divisors, whose sum is σ = 286144988. Its totient is φ = 286144986.

The previous prime is 286144967. The next prime is 286145009. The reversal of 286144987 is 789441682.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-286144987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 286144987.

It is not a weakly prime, because it can be changed into another prime (286144927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143072493 + 143072494.

It is an arithmetic number, because the mean of its divisors is an integer number (143072494).

Almost surely, 2^286144987 is an apocalyptic number.

286144987 is a deficient number, since it is larger than the sum of its proper divisors (1).

286144987 is an equidigital number, since it uses as much as digits as its factorization.

286144987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 49.

The square root of 286144987 is about 16915.8206126691. The cubic root of 286144987 is about 658.9645433215.

The spelling of 286144987 in words is "two hundred eighty-six million, one hundred forty-four thousand, nine hundred eighty-seven".