85166153 has 4 divisors (see below), whose sum is σ = 85548288. Its totient is φ = 84784020.

The previous prime is 85166117. The next prime is 85166173. The reversal of 85166153 is 35166158.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85166153 - 2²⁰ = 84117577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85166173) 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, 190733 + ... + 191178.

It is an arithmetic number, because the mean of its divisors is an integer number (21387072).

Almost surely, 2^85166153 is an apocalyptic number.

It is an amenable number.

85166153 is a deficient number, since it is larger than the sum of its proper divisors (382135).

85166153 is a wasteful number, since it uses less digits than its factorization.

85166153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382134.

The product of its digits is 21600, while the sum is 35.

The square root of 85166153 is about 9228.5509696810. The cubic root of 85166153 is about 439.9692695480.

The spelling of 85166153 in words is "eighty-five million, one hundred sixty-six thousand, one hundred fifty-three".