320456451 has 48 divisors (see below), whose sum is σ = 528450048. Its totient is φ = 169084800.

The previous prime is 320456449. The next prime is 320456453. The reversal of 320456451 is 154654023.

It is an interprime number because it is at equal distance from previous prime (320456449) and next prime (320456453).

It is not a de Polignac number, because 320456451 - 2¹ = 320456449 is a prime.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (320456453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 310306 + ... + 311336.

It is an arithmetic number, because the mean of its divisors is an integer number (11009376).

Almost surely, 2^320456451 is an apocalyptic number.

320456451 is a deficient number, since it is larger than the sum of its proper divisors (207993597).

320456451 is a wasteful number, since it uses less digits than its factorization.

320456451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 320456451 is about 17901.2974669436. The cubic root of 320456451 is about 684.3154409252.

The spelling of 320456451 in words is "three hundred twenty million, four hundred fifty-six thousand, four hundred fifty-one".