85153177 has 4 divisors (see below), whose sum is σ = 85209700. Its totient is φ = 85096656.

The previous prime is 85153157. The next prime is 85153213. The reversal of 85153177 is 77135158.

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 32387481 + 52765696 = 5691^2 + 7264^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85153177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85153127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25938 + ... + 29035.

It is an arithmetic number, because the mean of its divisors is an integer number (21302425).

Almost surely, 2^85153177 is an apocalyptic number.

It is an amenable number.

85153177 is a deficient number, since it is larger than the sum of its proper divisors (56523).

85153177 is a wasteful number, since it uses less digits than its factorization.

85153177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56522.

The product of its digits is 29400, while the sum is 37.

The square root of 85153177 is about 9227.8479072859. The cubic root of 85153177 is about 439.9469236942.

The spelling of 85153177 in words is "eighty-five million, one hundred fifty-three thousand, one hundred seventy-seven".