320612249 has 8 divisors (see below), whose sum is σ = 335005440. Its totient is φ = 306256896.

The previous prime is 320612233. The next prime is 320612287. The reversal of 320612249 is 942216023.

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 320612249 - 2⁴ = 320612233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320612209) 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, 8624 + ... + 26750.

It is an arithmetic number, because the mean of its divisors is an integer number (41875680).

Almost surely, 2^320612249 is an apocalyptic number.

It is an amenable number.

320612249 is a deficient number, since it is larger than the sum of its proper divisors (14393191).

320612249 is a wasteful number, since it uses less digits than its factorization.

320612249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18919.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 320612249 is about 17905.6485221843. The cubic root of 320612249 is about 684.4263220382.

The spelling of 320612249 in words is "three hundred twenty million, six hundred twelve thousand, two hundred forty-nine".