85130273 has 4 divisors (see below), whose sum is σ = 85600788. Its totient is φ = 84659760.

The previous prime is 85130257. The next prime is 85130281. The reversal of 85130273 is 37203158.

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 39337984 + 45792289 = 6272^2 + 6767^2 .

It is a cyclic number.

It is not a de Polignac number, because 85130273 - 2⁴ = 85130257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85130233) 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, 234986 + ... + 235347.

It is an arithmetic number, because the mean of its divisors is an integer number (21400197).

Almost surely, 2^85130273 is an apocalyptic number.

It is an amenable number.

85130273 is a deficient number, since it is larger than the sum of its proper divisors (470515).

85130273 is a wasteful number, since it uses less digits than its factorization.

85130273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470514.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 85130273 is about 9226.6067977345. The cubic root of 85130273 is about 439.9074753797.

The spelling of 85130273 in words is "eighty-five million, one hundred thirty thousand, two hundred seventy-three".