85940147 has 2 divisors, whose sum is σ = 85940148. Its totient is φ = 85940146.

The previous prime is 85940143. The next prime is 85940177. The reversal of 85940147 is 74104958.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85940147 - 2² = 85940143 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85940147.

It is not a weakly prime, because it can be changed into another prime (85940143) 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, 42970073 + 42970074.

It is an arithmetic number, because the mean of its divisors is an integer number (42970074).

Almost surely, 2^85940147 is an apocalyptic number.

85940147 is a deficient number, since it is larger than the sum of its proper divisors (1).

85940147 is an equidigital number, since it uses as much as digits as its factorization.

85940147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 85940147 is about 9270.3908763331. The cubic root of 85940147 is about 441.2980726969.

The spelling of 85940147 in words is "eighty-five million, nine hundred forty thousand, one hundred forty-seven".