163009513 has 2 divisors, whose sum is σ = 163009514. Its totient is φ = 163009512.

The previous prime is 163009499. The next prime is 163009577. The reversal of 163009513 is 315900361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99440784 + 63568729 = 9972^2 + 7973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-163009513 is a prime.

It is equal to p_9133642 and since 163009513 and 9133642 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (163009213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81504756 + 81504757.

It is an arithmetic number, because the mean of its divisors is an integer number (81504757).

Almost surely, 2^163009513 is an apocalyptic number.

It is an amenable number.

163009513 is a deficient number, since it is larger than the sum of its proper divisors (1).

163009513 is an equidigital number, since it uses as much as digits as its factorization.

163009513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 28.

The square root of 163009513 is about 12767.5178872011. The cubic root of 163009513 is about 546.2661837703.

Adding to 163009513 its reverse (315900361), we get a palindrome (478909874).

The spelling of 163009513 in words is "one hundred sixty-three million, nine thousand, five hundred thirteen".