85412273 has 2 divisors, whose sum is σ = 85412274. Its totient is φ = 85412272.

The previous prime is 85412269. The next prime is 85412287. The reversal of 85412273 is 37221458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45064369 + 40347904 = 6713^2 + 6352^2 .

It is a cyclic number.

It is not a de Polignac number, because 85412273 - 2² = 85412269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (85412213) 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 as a sum of consecutive naturals, namely, 42706136 + 42706137.

It is an arithmetic number, because the mean of its divisors is an integer number (42706137).

Almost surely, 2^85412273 is an apocalyptic number.

It is an amenable number.

85412273 is a deficient number, since it is larger than the sum of its proper divisors (1).

85412273 is an equidigital number, since it uses as much as digits as its factorization.

85412273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 32.

The square root of 85412273 is about 9241.8760541353. The cubic root of 85412273 is about 440.3926814689.

The spelling of 85412273 in words is "eighty-five million, four hundred twelve thousand, two hundred seventy-three".