85189105 has 4 divisors (see below), whose sum is σ = 102226932. Its totient is φ = 68151280.

The previous prime is 85189099. The next prime is 85189127. The reversal of 85189105 is 50198158.

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 33593616 + 51595489 = 5796^2 + 7183^2 .

It is not a de Polignac number, because 85189105 - 2¹¹ = 85187057 is a prime.

It is a super-2 number, since 2×85189105² = 14514367221402050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8518906 + ... + 8518915.

It is an arithmetic number, because the mean of its divisors is an integer number (25556733).

Almost surely, 2^85189105 is an apocalyptic number.

It is an amenable number.

85189105 is a deficient number, since it is larger than the sum of its proper divisors (17037827).

85189105 is a wasteful number, since it uses less digits than its factorization.

85189105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17037826.

The product of its (nonzero) digits is 14400, while the sum is 37.

The square root of 85189105 is about 9229.7944180789. The cubic root of 85189105 is about 440.0087894250.

The spelling of 85189105 in words is "eighty-five million, one hundred eighty-nine thousand, one hundred five".