85147 has 2 divisors, whose sum is σ = 85148. Its totient is φ = 85146.

The previous prime is 85133. The next prime is 85159. The reversal of 85147 is 74158.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85147 - 2¹⁵ = 52379 is a prime.

85147 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (85247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42573 + 42574.

It is an arithmetic number, because the mean of its divisors is an integer number (42574).

2⁸⁵¹⁴⁷ is an apocalyptic number.

85147 is a deficient number, since it is larger than the sum of its proper divisors (1).

85147 is an equidigital number, since it uses as much as digits as its factorization.

85147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 25.

The square root of 85147 is about 291.7995887591. The cubic root of 85147 is about 43.9936285540.

It can be divided in two parts, 851 and 47, that added together give a palindrome (898).

The spelling of 85147 in words is "eighty-five thousand, one hundred forty-seven".