146504321 has 2 divisors, whose sum is σ = 146504322. Its totient is φ = 146504320.

The previous prime is 146504299. The next prime is 146504327. The reversal of 146504321 is 123405641.

146504321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146289025 + 215296 = 12095^2 + 464^2 .

It is an emirp because it is prime and its reverse (123405641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146504321 - 2²² = 142310017 is a prime.

It is not a weakly prime, because it can be changed into another prime (146504327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73252160 + 73252161.

It is an arithmetic number, because the mean of its divisors is an integer number (73252161).

Almost surely, 2^146504321 is an apocalyptic number.

It is an amenable number.

146504321 is a deficient number, since it is larger than the sum of its proper divisors (1).

146504321 is an equidigital number, since it uses as much as digits as its factorization.

146504321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 146504321 is about 12103.8969344588. The cubic root of 146504321 is about 527.1693409257.

Adding to 146504321 its reverse (123405641), we get a palindrome (269909962).

The spelling of 146504321 in words is "one hundred forty-six million, five hundred four thousand, three hundred twenty-one".