85171741 has 4 divisors (see below), whose sum is σ = 85543900. Its totient is φ = 84799584.

The previous prime is 85171739. The next prime is 85171769. The reversal of 85171741 is 14717158.

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 40896025 + 44275716 = 6395^2 + 6654^2 .

It is a cyclic number.

It is not a de Polignac number, because 85171741 - 2¹ = 85171739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85171697 and 85171706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85171721) 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, 185736 + ... + 186193.

It is an arithmetic number, because the mean of its divisors is an integer number (21385975).

Almost surely, 2^85171741 is an apocalyptic number.

It is an amenable number.

85171741 is a deficient number, since it is larger than the sum of its proper divisors (372159).

85171741 is a wasteful number, since it uses less digits than its factorization.

85171741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372158.

The product of its digits is 7840, while the sum is 34.

The square root of 85171741 is about 9228.8537208041. The cubic root of 85171741 is about 439.9788918937.

Adding to 85171741 its reverse (14717158), we get a palindrome (99888899).

The spelling of 85171741 in words is "eighty-five million, one hundred seventy-one thousand, seven hundred forty-one".