1745600321 has 2 divisors, whose sum is σ = 1745600322. Its totient is φ = 1745600320.

The previous prime is 1745600287. The next prime is 1745600323. The reversal of 1745600321 is 1230065471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1564993600 + 180606721 = 39560^2 + 13439^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745600321 - 2¹⁴ = 1745583937 is a prime.

Together with 1745600323, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1745600323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872800160 + 872800161.

It is an arithmetic number, because the mean of its divisors is an integer number (872800161).

Almost surely, 2^1745600321 is an apocalyptic number.

It is an amenable number.

1745600321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745600321 is an equidigital number, since it uses as much as digits as its factorization.

1745600321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 1745600321 is about 41780.3820111784. The cubic root of 1745600321 is about 1204.0603938848.

Adding to 1745600321 its reverse (1230065471), we get a palindrome (2975665792).

The spelling of 1745600321 in words is "one billion, seven hundred forty-five million, six hundred thousand, three hundred twenty-one".