146605213 has 2 divisors, whose sum is σ = 146605214. Its totient is φ = 146605212.

The previous prime is 146605181. The next prime is 146605223. The reversal of 146605213 is 312506641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95296644 + 51308569 = 9762^2 + 7163^2 .

It is an emirp because it is prime and its reverse (312506641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146605213 - 2⁵ = 146605181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146605223) 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 as a sum of consecutive naturals, namely, 73302606 + 73302607.

It is an arithmetic number, because the mean of its divisors is an integer number (73302607).

Almost surely, 2^146605213 is an apocalyptic number.

It is an amenable number.

146605213 is a deficient number, since it is larger than the sum of its proper divisors (1).

146605213 is an equidigital number, since it uses as much as digits as its factorization.

146605213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 146605213 is about 12108.0639658039. The cubic root of 146605213 is about 527.2903270375.

The spelling of 146605213 in words is "one hundred forty-six million, six hundred five thousand, two hundred thirteen".