287144001 has 8 divisors (see below), whose sum is σ = 425398560. Its totient is φ = 191429316.

The previous prime is 287143999. The next prime is 287144003. The reversal of 287144001 is 100441782.

It is an interprime number because it is at equal distance from previous prime (287143999) and next prime (287144003).

It is not a de Polignac number, because 287144001 - 2¹ = 287143999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 10634963 = 287144001 / (2 + 8 + 7 + 1 + 4 + 4 + 0 + 0 + 1).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (287144003) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5317455 + ... + 5317508.

It is an arithmetic number, because the mean of its divisors is an integer number (53174820).

Almost surely, 2^287144001 is an apocalyptic number.

It is an amenable number.

287144001 is a deficient number, since it is larger than the sum of its proper divisors (138254559).

287144001 is a wasteful number, since it uses less digits than its factorization.

287144001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10634972 (or 10634966 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 287144001 is about 16945.3238682534. The cubic root of 287144001 is about 659.7305304899.

Adding to 287144001 its reverse (100441782), we get a palindrome (387585783).

The spelling of 287144001 in words is "two hundred eighty-seven million, one hundred forty-four thousand, one".