285137663 has 2 divisors, whose sum is σ = 285137664. Its totient is φ = 285137662.

The previous prime is 285137653. The next prime is 285137669. The reversal of 285137663 is 366731582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285137663 - 2⁸ = 285137407 is a prime.

It is a super-2 number, since 2×285137663² = 162606973722203138, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 285137663.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285137669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142568831 + 142568832.

It is an arithmetic number, because the mean of its divisors is an integer number (142568832).

Almost surely, 2^285137663 is an apocalyptic number.

285137663 is a deficient number, since it is larger than the sum of its proper divisors (1).

285137663 is an equidigital number, since it uses as much as digits as its factorization.

285137663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 41.

The square root of 285137663 is about 16886.0197500773. The cubic root of 285137663 is about 658.1903772203.

The spelling of 285137663 in words is "two hundred eighty-five million, one hundred thirty-seven thousand, six hundred sixty-three".