245004321 has 8 divisors (see below), whose sum is σ = 327379840. Its totient is φ = 162982512.

The previous prime is 245004317. The next prime is 245004329. The reversal of 245004321 is 123400542.

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

It is not a de Polignac number, because 245004321 - 2² = 245004317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245004329) 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, 86806 + ... + 89583.

It is an arithmetic number, because the mean of its divisors is an integer number (40922480).

Almost surely, 2^245004321 is an apocalyptic number.

It is an amenable number.

245004321 is a deficient number, since it is larger than the sum of its proper divisors (82375519).

245004321 is a wasteful number, since it uses less digits than its factorization.

245004321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176855.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 245004321 is about 15652.6138711718. The cubic root of 245004321 is about 625.7361531719.

Adding to 245004321 its reverse (123400542), we get a palindrome (368404863).

The spelling of 245004321 in words is "two hundred forty-five million, four thousand, three hundred twenty-one".