320421149 has 8 divisors (see below), whose sum is σ = 337538880. Its totient is φ = 303328800.

The previous prime is 320421133. The next prime is 320421161. The reversal of 320421149 is 941124023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320421149 - 2⁴ = 320421133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320421649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23129 + ... + 34289.

It is an arithmetic number, because the mean of its divisors is an integer number (42192360).

Almost surely, 2^320421149 is an apocalyptic number.

It is an amenable number.

320421149 is a deficient number, since it is larger than the sum of its proper divisors (17117731).

320421149 is a wasteful number, since it uses less digits than its factorization.

320421149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12691.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 320421149 is about 17900.3114218720. The cubic root of 320421149 is about 684.2903115712.

The spelling of 320421149 in words is "three hundred twenty million, four hundred twenty-one thousand, one hundred forty-nine".