85513159 has 4 divisors (see below), whose sum is σ = 88271680. Its totient is φ = 82754640.

The previous prime is 85513151. The next prime is 85513177. The reversal of 85513159 is 95131558.

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 85513159 - 2³ = 85513151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85513151) 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, 1379214 + ... + 1379275.

It is an arithmetic number, because the mean of its divisors is an integer number (22067920).

Almost surely, 2^85513159 is an apocalyptic number.

85513159 is a deficient number, since it is larger than the sum of its proper divisors (2758521).

85513159 is a wasteful number, since it uses less digits than its factorization.

85513159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2758520.

The product of its digits is 27000, while the sum is 37.

The square root of 85513159 is about 9247.3325343041. The cubic root of 85513159 is about 440.5660054075.

The spelling of 85513159 in words is "eighty-five million, five hundred thirteen thousand, one hundred fifty-nine".