20601473 has 2 divisors, whose sum is σ = 20601474. Its totient is φ = 20601472.

The previous prime is 20601439. The next prime is 20601487. The reversal of 20601473 is 37410602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16056049 + 4545424 = 4007^2 + 2132^2 .

It is a cyclic number.

It is not a de Polignac number, because 20601473 - 2¹⁰ = 20600449 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20601173) 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, 10300736 + 10300737.

It is an arithmetic number, because the mean of its divisors is an integer number (10300737).

Almost surely, 2^20601473 is an apocalyptic number.

It is an amenable number.

20601473 is a deficient number, since it is larger than the sum of its proper divisors (1).

20601473 is an equidigital number, since it uses as much as digits as its factorization.

20601473 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 20601473 is about 4538.8845546015. The cubic root of 20601473 is about 274.1360123564.

The spelling of 20601473 in words is "twenty million, six hundred one thousand, four hundred seventy-three".