287143013 has 2 divisors, whose sum is σ = 287143014. Its totient is φ = 287143012.

The previous prime is 287142997. The next prime is 287143019. The reversal of 287143013 is 310341782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249418849 + 37724164 = 15793^2 + 6142^2 .

It is a cyclic number.

It is not a de Polignac number, because 287143013 - 2⁴ = 287142997 is a prime.

It is a super-2 number, since 2×287143013² = 164902219829436338, 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 (287143019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143571506 + 143571507.

It is an arithmetic number, because the mean of its divisors is an integer number (143571507).

Almost surely, 2^287143013 is an apocalyptic number.

It is an amenable number.

287143013 is a deficient number, since it is larger than the sum of its proper divisors (1).

287143013 is an equidigital number, since it uses as much as digits as its factorization.

287143013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 287143013 is about 16945.2947156430. The cubic root of 287143013 is about 659.7297738260.

Adding to 287143013 its reverse (310341782), we get a palindrome (597484795).

The spelling of 287143013 in words is "two hundred eighty-seven million, one hundred forty-three thousand, thirteen".