285850153 has 4 divisors (see below), whose sum is σ = 285903108. Its totient is φ = 285797200.

The previous prime is 285850139. The next prime is 285850157. The reversal of 285850153 is 351058582.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139996224 + 145853929 = 11832^2 + 12077^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-285850153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (285850157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17326 + ... + 29527.

It is an arithmetic number, because the mean of its divisors is an integer number (71475777).

Almost surely, 2^285850153 is an apocalyptic number.

It is an amenable number.

285850153 is a deficient number, since it is larger than the sum of its proper divisors (52955).

285850153 is an equidigital number, since it uses as much as digits as its factorization.

285850153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52954.

The product of its (nonzero) digits is 48000, while the sum is 37.

The square root of 285850153 is about 16907.1036253996. The cubic root of 285850153 is about 658.7381407080.

The spelling of 285850153 in words is "two hundred eighty-five million, eight hundred fifty thousand, one hundred fifty-three".