19736113 has 2 divisors, whose sum is σ = 19736114. Its totient is φ = 19736112.

The previous prime is 19736081. The next prime is 19736131. The reversal of 19736113 is 31163791.

Together with next prime (19736131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18215824 + 1520289 = 4268^2 + 1233^2 .

It is an emirp because it is prime and its reverse (31163791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 19736113 - 2⁵ = 19736081 is a prime.

It is not a weakly prime, because it can be changed into another prime (19736173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9868056 + 9868057.

It is an arithmetic number, because the mean of its divisors is an integer number (9868057).

Almost surely, 2^19736113 is an apocalyptic number.

It is an amenable number.

19736113 is a deficient number, since it is larger than the sum of its proper divisors (1).

19736113 is an equidigital number, since it uses as much as digits as its factorization.

19736113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3402, while the sum is 31.

The square root of 19736113 is about 4442.5345243453. The cubic root of 19736113 is about 270.2426396788.

The spelling of 19736113 in words is "nineteen million, seven hundred thirty-six thousand, one hundred thirteen".