85181935 has 4 divisors (see below), whose sum is σ = 102218328. Its totient is φ = 68145544.

The previous prime is 85181923. The next prime is 85181939. The reversal of 85181935 is 53918158.

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 85181935 - 2¹³ = 85173743 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85181939) 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, 8518189 + ... + 8518198.

It is an arithmetic number, because the mean of its divisors is an integer number (25554582).

Almost surely, 2^85181935 is an apocalyptic number.

85181935 is a deficient number, since it is larger than the sum of its proper divisors (17036393).

85181935 is a wasteful number, since it uses less digits than its factorization.

85181935 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17036392.

The product of its digits is 43200, while the sum is 40.

The square root of 85181935 is about 9229.4059938871. The cubic root of 85181935 is about 439.9964445305.

The spelling of 85181935 in words is "eighty-five million, one hundred eighty-one thousand, nine hundred thirty-five".