85159139 has 8 divisors (see below), whose sum is σ = 94668672. Its totient is φ = 76072320.

The previous prime is 85159093. The next prime is 85159157. The reversal of 85159139 is 93195158.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85159139 - 2⁸ = 85158883 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 85159096 and 85159105.

It is not an unprimeable number, because it can be changed into a prime (85159189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105254 + ... + 106059.

It is an arithmetic number, because the mean of its divisors is an integer number (11833584).

Almost surely, 2^85159139 is an apocalyptic number.

85159139 is a deficient number, since it is larger than the sum of its proper divisors (9509533).

85159139 is a wasteful number, since it uses less digits than its factorization.

85159139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211357.

The product of its digits is 48600, while the sum is 41.

The square root of 85159139 is about 9228.1709455341. The cubic root of 85159139 is about 439.9571910831.

The spelling of 85159139 in words is "eighty-five million, one hundred fifty-nine thousand, one hundred thirty-nine".