320453201 has 2 divisors, whose sum is σ = 320453202. Its totient is φ = 320453200.

The previous prime is 320453173. The next prime is 320453209. The reversal of 320453201 is 102354023.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260854801 + 59598400 = 16151^2 + 7720^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320453201 is a prime.

It is a super-2 number, since 2×320453201² = 205380508062292802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (320453209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160226600 + 160226601.

It is an arithmetic number, because the mean of its divisors is an integer number (160226601).

Almost surely, 2^320453201 is an apocalyptic number.

It is an amenable number.

320453201 is a deficient number, since it is larger than the sum of its proper divisors (1).

320453201 is an equidigital number, since it uses as much as digits as its factorization.

320453201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 320453201 is about 17901.2066911703. The cubic root of 320453201 is about 684.3131275243.

The spelling of 320453201 in words is "three hundred twenty million, four hundred fifty-three thousand, two hundred one".