320536451 has 2 divisors, whose sum is σ = 320536452. Its totient is φ = 320536450.

The previous prime is 320536429. The next prime is 320536453. The reversal of 320536451 is 154635023.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 320536451 - 2¹⁸ = 320274307 is a prime.

Together with 320536453, 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 (320536453) 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, 160268225 + 160268226.

It is an arithmetic number, because the mean of its divisors is an integer number (160268226).

Almost surely, 2^320536451 is an apocalyptic number.

320536451 is a deficient number, since it is larger than the sum of its proper divisors (1).

320536451 is an equidigital number, since it uses as much as digits as its factorization.

320536451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 320536451 is about 17903.5318024126. The cubic root of 320536451 is about 684.3723812470.

The spelling of 320536451 in words is "three hundred twenty million, five hundred thirty-six thousand, four hundred fifty-one".