85655147 has 2 divisors, whose sum is σ = 85655148. Its totient is φ = 85655146.

The previous prime is 85655117. The next prime is 85655153. The reversal of 85655147 is 74155658.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85655147 - 2⁶ = 85655083 is a prime.

It is a super-3 number, since 3×85655147³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85655117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42827573 + 42827574.

It is an arithmetic number, because the mean of its divisors is an integer number (42827574).

Almost surely, 2^85655147 is an apocalyptic number.

85655147 is a deficient number, since it is larger than the sum of its proper divisors (1).

85655147 is an equidigital number, since it uses as much as digits as its factorization.

85655147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 168000, while the sum is 41.

The square root of 85655147 is about 9255.0065910295. The cubic root of 85655147 is about 440.8097125203.

The spelling of 85655147 in words is "eighty-five million, six hundred fifty-five thousand, one hundred forty-seven".