285113039 has 2 divisors, whose sum is σ = 285113040. Its totient is φ = 285113038.

The previous prime is 285113033. The next prime is 285113041. The reversal of 285113039 is 930311582.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 285113039 - 2²⁰ = 284064463 is a prime.

Together with 285113041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 285112996 and 285113014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (285113033) 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, 142556519 + 142556520.

It is an arithmetic number, because the mean of its divisors is an integer number (142556520).

Almost surely, 2^285113039 is an apocalyptic number.

285113039 is a deficient number, since it is larger than the sum of its proper divisors (1).

285113039 is an equidigital number, since it uses as much as digits as its factorization.

285113039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 285113039 is about 16885.2906104692. The cubic root of 285113039 is about 658.1714299438.

The spelling of 285113039 in words is "two hundred eighty-five million, one hundred thirteen thousand, thirty-nine".