285714157 has 2 divisors, whose sum is σ = 285714158. Its totient is φ = 285714156.

The previous prime is 285714133. The next prime is 285714161. The reversal of 285714157 is 751417582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 154405476 + 131308681 = 12426^2 + 11459^2 .

It is a cyclic number.

It is not a de Polignac number, because 285714157 - 2⁷ = 285714029 is a prime.

It is a Chen prime.

It is equal to p_15519478 and since 285714157 and 15519478 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285714127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142857078 + 142857079.

It is an arithmetic number, because the mean of its divisors is an integer number (142857079).

Almost surely, 2^285714157 is an apocalyptic number.

It is an amenable number.

285714157 is a deficient number, since it is larger than the sum of its proper divisors (1).

285714157 is an equidigital number, since it uses as much as digits as its factorization.

285714157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 78400, while the sum is 40.

The square root of 285714157 is about 16903.0812871500. The cubic root of 285714157 is about 658.6336571035.

The spelling of 285714157 in words is "two hundred eighty-five million, seven hundred fourteen thousand, one hundred fifty-seven".