85181205 has 16 divisors (see below), whose sum is σ = 136413504. Its totient is φ = 45388800.

The previous prime is 85181183. The next prime is 85181219. The reversal of 85181205 is 50218158.

85181205 is nontrivially palindromic in base 16.

It is not a de Polignac number, because 85181205 - 2¹⁸ = 84919061 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22242 + ... + 25788.

It is an arithmetic number, because the mean of its divisors is an integer number (8525844).

Almost surely, 2^85181205 is an apocalyptic number.

It is an amenable number.

85181205 is a deficient number, since it is larger than the sum of its proper divisors (51232299).

85181205 is a wasteful number, since it uses less digits than its factorization.

85181205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5156.

The product of its (nonzero) digits is 3200, while the sum is 30.

The square root of 85181205 is about 9229.3664462952. The cubic root of 85181205 is about 439.9951876195.

The spelling of 85181205 in words is "eighty-five million, one hundred eighty-one thousand, two hundred five".