285275099 has 2 divisors, whose sum is σ = 285275100. Its totient is φ = 285275098.

The previous prime is 285275087. The next prime is 285275173. The reversal of 285275099 is 990572582.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285275099 is a prime.

It is not a weakly prime, because it can be changed into another prime (285277099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142637549 + 142637550.

It is an arithmetic number, because the mean of its divisors is an integer number (142637550).

Almost surely, 2^285275099 is an apocalyptic number.

285275099 is a deficient number, since it is larger than the sum of its proper divisors (1).

285275099 is an equidigital number, since it uses as much as digits as its factorization.

285275099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 453600, while the sum is 47.

The square root of 285275099 is about 16890.0887801101. The cubic root of 285275099 is about 658.2961092165.

The spelling of 285275099 in words is "two hundred eighty-five million, two hundred seventy-five thousand, ninety-nine".