320212859 has 2 divisors, whose sum is σ = 320212860. Its totient is φ = 320212858.

The previous prime is 320212853. The next prime is 320212861. The reversal of 320212859 is 958212023.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320212859 - 2⁴ = 320212843 is a prime.

Together with 320212861, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (320212853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160106429 + 160106430.

It is an arithmetic number, because the mean of its divisors is an integer number (160106430).

Almost surely, 2^320212859 is an apocalyptic number.

320212859 is a deficient number, since it is larger than the sum of its proper divisors (1).

320212859 is an equidigital number, since it uses as much as digits as its factorization.

320212859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 320212859 is about 17894.4924208540. The cubic root of 320212859 is about 684.1420049600.

It can be divided in two parts, 3202 and 12859, that added together give a palindrome (16061).

The spelling of 320212859 in words is "three hundred twenty million, two hundred twelve thousand, eight hundred fifty-nine".