146305321 has 2 divisors, whose sum is σ = 146305322. Its totient is φ = 146305320.

The previous prime is 146305297. The next prime is 146305331. The reversal of 146305321 is 123503641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86025625 + 60279696 = 9275^2 + 7764^2 .

It is a cyclic number.

It is not a de Polignac number, because 146305321 - 2²⁵ = 112750889 is a prime.

It is not a weakly prime, because it can be changed into another prime (146305331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73152660 + 73152661.

It is an arithmetic number, because the mean of its divisors is an integer number (73152661).

Almost surely, 2^146305321 is an apocalyptic number.

It is an amenable number.

146305321 is a deficient number, since it is larger than the sum of its proper divisors (1).

146305321 is an equidigital number, since it uses as much as digits as its factorization.

146305321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 146305321 is about 12095.6736480446. The cubic root of 146305321 is about 526.9305442517.

Adding to 146305321 its reverse (123503641), we get a palindrome (269808962).

The spelling of 146305321 in words is "one hundred forty-six million, three hundred five thousand, three hundred twenty-one".