85161305 has 16 divisors (see below), whose sum is σ = 106178688. Its totient is φ = 65520000.

The previous prime is 85161283. The next prime is 85161311. The reversal of 85161305 is 50316158.

It is not a de Polignac number, because 85161305 - 2⁸ = 85161049 is a prime.

It is a Duffinian 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, 11630 + ... + 17480.

It is an arithmetic number, because the mean of its divisors is an integer number (6636168).

Almost surely, 2^85161305 is an apocalyptic number.

It is an amenable number.

85161305 is a deficient number, since it is larger than the sum of its proper divisors (21017383).

85161305 is a wasteful number, since it uses less digits than its factorization.

85161305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5968.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 85161305 is about 9228.2883028219. The cubic root of 85161305 is about 439.9609211161.

The spelling of 85161305 in words is "eighty-five million, one hundred sixty-one thousand, three hundred five".