163246513 has 2 divisors, whose sum is σ = 163246514. Its totient is φ = 163246512.

The previous prime is 163246487. The next prime is 163246547. The reversal of 163246513 is 315642361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156450064 + 6796449 = 12508^2 + 2607^2 .

It is an emirp because it is prime and its reverse (315642361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 163246513 - 2⁹ = 163246001 is a prime.

It is not a weakly prime, because it can be changed into another prime (163246313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81623256 + 81623257.

It is an arithmetic number, because the mean of its divisors is an integer number (81623257).

Almost surely, 2^163246513 is an apocalyptic number.

It is an amenable number.

163246513 is a deficient number, since it is larger than the sum of its proper divisors (1).

163246513 is an equidigital number, since it uses as much as digits as its factorization.

163246513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 31.

The square root of 163246513 is about 12776.7958815972. The cubic root of 163246513 is about 546.5307948976.

Adding to 163246513 its reverse (315642361), we get a palindrome (478888874).

The spelling of 163246513 in words is "one hundred sixty-three million, two hundred forty-six thousand, five hundred thirteen".