320211449 has 2 divisors, whose sum is σ = 320211450. Its totient is φ = 320211448.

The previous prime is 320211433. The next prime is 320211461. The reversal of 320211449 is 944112023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 287641600 + 32569849 = 16960^2 + 5707^2 .

It is a cyclic number.

It is not a de Polignac number, because 320211449 - 2⁴ = 320211433 is a prime.

It is not a weakly prime, because it can be changed into another prime (320211469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160105724 + 160105725.

It is an arithmetic number, because the mean of its divisors is an integer number (160105725).

Almost surely, 2^320211449 is an apocalyptic number.

It is an amenable number.

320211449 is a deficient number, since it is larger than the sum of its proper divisors (1).

320211449 is an equidigital number, since it uses as much as digits as its factorization.

320211449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 320211449 is about 17894.4530232136. The cubic root of 320211449 is about 684.1410007929.

The spelling of 320211449 in words is "three hundred twenty million, two hundred eleven thousand, four hundred forty-nine".