321144045 has 8 divisors (see below), whose sum is σ = 513830496. Its totient is φ = 171276816.

The previous prime is 321144041. The next prime is 321144121. The reversal of 321144045 is 540441123.

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

It is not a de Polignac number, because 321144045 - 2² = 321144041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321144041) 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 7 ways as a sum of consecutive naturals, for example, 10704787 + ... + 10704816.

It is an arithmetic number, because the mean of its divisors is an integer number (64228812).

Almost surely, 2^321144045 is an apocalyptic number.

It is an amenable number.

321144045 is a deficient number, since it is larger than the sum of its proper divisors (192686451).

321144045 is a wasteful number, since it uses less digits than its factorization.

321144045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21409611.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 321144045 is about 17920.4923202461. The cubic root of 321144045 is about 684.8045298018.

Adding to 321144045 its reverse (540441123), we get a palindrome (861585168).

The spelling of 321144045 in words is "three hundred twenty-one million, one hundred forty-four thousand, forty-five".