320542455 has 16 divisors (see below), whose sum is σ = 513164160. Its totient is φ = 170857248.

The previous prime is 320542451. The next prime is 320542471. The reversal of 320542455 is 554245023.

It is not a de Polignac number, because 320542455 - 2² = 320542451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320542451) 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 in 15 ways as a sum of consecutive naturals, for example, 26116 + ... + 36374.

It is an arithmetic number, because the mean of its divisors is an integer number (32072760).

Almost surely, 2^320542455 is an apocalyptic number.

320542455 is a deficient number, since it is larger than the sum of its proper divisors (192621705).

320542455 is a wasteful number, since it uses less digits than its factorization.

320542455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12350.

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 320542455 is about 17903.6994780408. The cubic root of 320542455 is about 684.3766542359.

Adding to 320542455 its reverse (554245023), we get a palindrome (874787478).

The spelling of 320542455 in words is "three hundred twenty million, five hundred forty-two thousand, four hundred fifty-five".