321495045 has 16 divisors (see below), whose sum is σ = 514999680. Its totient is φ = 171261504.

The previous prime is 321495043. The next prime is 321495049. The reversal of 321495045 is 540594123.

It is not a de Polignac number, because 321495045 - 2¹ = 321495043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321494997 and 321495015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321495043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936 + ... + 25374.

It is an arithmetic number, because the mean of its divisors is an integer number (32187480).

Almost surely, 2^321495045 is an apocalyptic number.

It is an amenable number.

321495045 is a deficient number, since it is larger than the sum of its proper divisors (193504635).

321495045 is a wasteful number, since it uses less digits than its factorization.

321495045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25324.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 321495045 is about 17930.2829035127. The cubic root of 321495045 is about 685.0539286577.

The spelling of 321495045 in words is "three hundred twenty-one million, four hundred ninety-five thousand, forty-five".