85161147 has 8 divisors (see below), whose sum is σ = 113702400. Its totient is φ = 56697000.

The previous prime is 85161137. The next prime is 85161151. The reversal of 85161147 is 74116158.

It is a happy number.

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

It is not a de Polignac number, because 85161147 - 2⁸ = 85160891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85161107) 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, 16647 + ... + 21152.

It is an arithmetic number, because the mean of its divisors is an integer number (14212800).

Almost surely, 2^85161147 is an apocalyptic number.

85161147 is a deficient number, since it is larger than the sum of its proper divisors (28541253).

85161147 is a wasteful number, since it uses less digits than its factorization.

85161147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38553.

The product of its digits is 6720, while the sum is 33.

The square root of 85161147 is about 9228.2797421838. The cubic root of 85161147 is about 439.9606490290.

The spelling of 85161147 in words is "eighty-five million, one hundred sixty-one thousand, one hundred forty-seven".