85312153 has 4 divisors (see below), whose sum is σ = 85716688. Its totient is φ = 84907620.

The previous prime is 85312151. The next prime is 85312177. The reversal of 85312153 is 35121358.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85312153 - 2¹ = 85312151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85312151) 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, 201951 + ... + 202372.

It is an arithmetic number, because the mean of its divisors is an integer number (21429172).

Almost surely, 2^85312153 is an apocalyptic number.

It is an amenable number.

85312153 is a deficient number, since it is larger than the sum of its proper divisors (404535).

85312153 is a wasteful number, since it uses less digits than its factorization.

85312153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404534.

The product of its digits is 3600, while the sum is 28.

The square root of 85312153 is about 9236.4578167174. The cubic root of 85312153 is about 440.2205385470.

The spelling of 85312153 in words is "eighty-five million, three hundred twelve thousand, one hundred fifty-three".