16124813 has 2 divisors, whose sum is σ = 16124814. Its totient is φ = 16124812.

The previous prime is 16124791. The next prime is 16124851. The reversal of 16124813 is 31842161.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13823524 + 2301289 = 3718^2 + 1517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16124813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16124873) 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, 8062406 + 8062407.

It is an arithmetic number, because the mean of its divisors is an integer number (8062407).

Almost surely, 2^16124813 is an apocalyptic number.

It is an amenable number.

16124813 is a deficient number, since it is larger than the sum of its proper divisors (1).

16124813 is an equidigital number, since it uses as much as digits as its factorization.

16124813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 26.

The square root of 16124813 is about 4015.5713167618. The cubic root of 16124813 is about 252.6377407481.

Adding to 16124813 its reverse (31842161), we get a palindrome (47966974).

The spelling of 16124813 in words is "sixteen million, one hundred twenty-four thousand, eight hundred thirteen".