321042245 has 8 divisors (see below), whose sum is σ = 388991616. Its totient is φ = 254339856.

The previous prime is 321042203. The next prime is 321042269. The reversal of 321042245 is 542240123.

It is a happy number.

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 321042245 - 2⁶ = 321042181 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 321042245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 311177 + ... + 312206.

It is an arithmetic number, because the mean of its divisors is an integer number (48623952).

Almost surely, 2^321042245 is an apocalyptic number.

It is an amenable number.

321042245 is a deficient number, since it is larger than the sum of its proper divisors (67949371).

321042245 is a wasteful number, since it uses less digits than its factorization.

321042245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623491.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 321042245 is about 17917.6517713678. The cubic root of 321042245 is about 684.7321630351.

Adding to 321042245 its reverse (542240123), we get a palindrome (863282368).

The spelling of 321042245 in words is "three hundred twenty-one million, forty-two thousand, two hundred forty-five".