285714131 has 2 divisors, whose sum is σ = 285714132. Its totient is φ = 285714130.

The previous prime is 285714127. The next prime is 285714133. The reversal of 285714131 is 131417582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285714131 - 2² = 285714127 is a prime.

It is a super-2 number, since 2×285714131² = 163265129306170322, which contains 22 as substring.

Together with 285714133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (285714133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142857065 + 142857066.

It is an arithmetic number, because the mean of its divisors is an integer number (142857066).

Almost surely, 2^285714131 is an apocalyptic number.

285714131 is a deficient number, since it is larger than the sum of its proper divisors (1).

285714131 is an equidigital number, since it uses as much as digits as its factorization.

285714131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 285714131 is about 16903.0805180594. The cubic root of 285714131 is about 658.6336371249.

The spelling of 285714131 in words is "two hundred eighty-five million, seven hundred fourteen thousand, one hundred thirty-one".