85147188 has 48 divisors (see below), whose sum is σ = 227512320. Its totient is φ = 24279264.

The previous prime is 85147187. The next prime is 85147193. The reversal of 85147188 is 88174158.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85147187) 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, 76645 + ... + 77747.

It is an arithmetic number, because the mean of its divisors is an integer number (4739840).

Almost surely, 2^85147188 is an apocalyptic number.

It is an amenable number.

85147188 is an abundant number, since it is smaller than the sum of its proper divisors (142365132).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85147188 is a wasteful number, since it uses less digits than its factorization.

85147188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2034 counting only the distinct ones).

The product of its digits is 71680, while the sum is 42.

The square root of 85147188 is about 9227.5233947143. The cubic root of 85147188 is about 439.9366093251.

The spelling of 85147188 in words is "eighty-five million, one hundred forty-seven thousand, one hundred eighty-eight".