20713141 has 2 divisors, whose sum is σ = 20713142. Its totient is φ = 20713140.

The previous prime is 20713139. The next prime is 20713153. The reversal of 20713141 is 14131702.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19140625 + 1572516 = 4375^2 + 1254^2 .

It is a cyclic number.

It is not a de Polignac number, because 20713141 - 2¹ = 20713139 is a prime.

Together with 20713139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20713541) 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, 10356570 + 10356571.

It is an arithmetic number, because the mean of its divisors is an integer number (10356571).

Almost surely, 2^20713141 is an apocalyptic number.

It is an amenable number.

20713141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20713141 is an equidigital number, since it uses as much as digits as its factorization.

20713141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 20713141 is about 4551.1691904389. The cubic root of 20713141 is about 274.6304280735.

Adding to 20713141 its reverse (14131702), we get a palindrome (34844843).

The spelling of 20713141 in words is "twenty million, seven hundred thirteen thousand, one hundred forty-one".