85201071 has 4 divisors (see below), whose sum is σ = 113601432. Its totient is φ = 56800712.

The previous prime is 85201069. The next prime is 85201087. The reversal of 85201071 is 17010258.

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

It is a cyclic number.

It is not a de Polignac number, because 85201071 - 2¹ = 85201069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85201091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14200176 + ... + 14200181.

It is an arithmetic number, because the mean of its divisors is an integer number (28400358).

Almost surely, 2^85201071 is an apocalyptic number.

85201071 is a deficient number, since it is larger than the sum of its proper divisors (28400361).

85201071 is a wasteful number, since it uses less digits than its factorization.

85201071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28400360.

The product of its (nonzero) digits is 560, while the sum is 24.

The square root of 85201071 is about 9230.4426221065. The cubic root of 85201071 is about 440.0293902544.

It can be divided in two parts, 8520 and 1071, that added together give a triangular number (9591 = T₁₃₈).

The spelling of 85201071 in words is "eighty-five million, two hundred one thousand, seventy-one".