85443147 has 16 divisors (see below), whose sum is σ = 126744960. Its totient is φ = 56889000.

The previous prime is 85443131. The next prime is 85443167. The reversal of 85443147 is 74134458.

It is not a de Polignac number, because 85443147 - 2⁴ = 85443131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85443167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26872 + ... + 29882.

It is an arithmetic number, because the mean of its divisors is an integer number (7921560).

Almost surely, 2^85443147 is an apocalyptic number.

85443147 is a deficient number, since it is larger than the sum of its proper divisors (41301813).

85443147 is a wasteful number, since it uses less digits than its factorization.

85443147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4071 (or 4065 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 85443147 is about 9243.5462350767. The cubic root of 85443147 is about 440.4457380349.

The spelling of 85443147 in words is "eighty-five million, four hundred forty-three thousand, one hundred forty-seven".