20064137 has 2 divisors, whose sum is σ = 20064138. Its totient is φ = 20064136.

The previous prime is 20064127. The next prime is 20064139. The reversal of 20064137 is 73146002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15649936 + 4414201 = 3956^2 + 2101^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20064137 is a prime.

Together with 20064139, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20064139) 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, 10032068 + 10032069.

It is an arithmetic number, because the mean of its divisors is an integer number (10032069).

Almost surely, 2^20064137 is an apocalyptic number.

It is an amenable number.

20064137 is a deficient number, since it is larger than the sum of its proper divisors (1).

20064137 is an equidigital number, since it uses as much as digits as its factorization.

20064137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20064137 is about 4479.3009499251. The cubic root of 20064137 is about 271.7316097180.

The spelling of 20064137 in words is "twenty million, sixty-four thousand, one hundred thirty-seven".