263286013 has 2 divisors, whose sum is σ = 263286014. Its totient is φ = 263286012.

The previous prime is 263285999. The next prime is 263286029. The reversal of 263286013 is 310682362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 250050969 + 13235044 = 15813^2 + 3638^2 .

It is a cyclic number.

It is not a de Polignac number, because 263286013 - 2⁹ = 263285501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263286053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131643006 + 131643007.

It is an arithmetic number, because the mean of its divisors is an integer number (131643007).

Almost surely, 2^263286013 is an apocalyptic number.

It is an amenable number.

263286013 is a deficient number, since it is larger than the sum of its proper divisors (1).

263286013 is an equidigital number, since it uses as much as digits as its factorization.

263286013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 263286013 is about 16226.0905026442. The cubic root of 263286013 is about 640.9280262321.

The spelling of 263286013 in words is "two hundred sixty-three million, two hundred eighty-six thousand, thirteen".