320460551 has 4 divisors (see below), whose sum is σ = 328276704. Its totient is φ = 312644400.

The previous prime is 320460533. The next prime is 320460599. The reversal of 320460551 is 155064023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320460551 - 2⁶ = 320460487 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 320460551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320460851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3908015 + ... + 3908096.

It is an arithmetic number, because the mean of its divisors is an integer number (82069176).

Almost surely, 2^320460551 is an apocalyptic number.

320460551 is a deficient number, since it is larger than the sum of its proper divisors (7816153).

320460551 is an equidigital number, since it uses as much as digits as its factorization.

320460551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7816152.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 320460551 is about 17901.4119834163. The cubic root of 320460551 is about 684.3183593471.

The spelling of 320460551 in words is "three hundred twenty million, four hundred sixty thousand, five hundred fifty-one".