20962061 has 2 divisors, whose sum is σ = 20962062. Its totient is φ = 20962060.

The previous prime is 20962033. The next prime is 20962069. The reversal of 20962061 is 16026902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19193161 + 1768900 = 4381^2 + 1330^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20962061 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20962061.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20962069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10481030 + 10481031.

It is an arithmetic number, because the mean of its divisors is an integer number (10481031).

Almost surely, 2^20962061 is an apocalyptic number.

It is an amenable number.

20962061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20962061 is an equidigital number, since it uses as much as digits as its factorization.

20962061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20962061 is about 4578.4343393785. The cubic root of 20962061 is about 275.7261733189.

Adding to 20962061 its reverse (16026902), we get a palindrome (36988963).

The spelling of 20962061 in words is "twenty million, nine hundred sixty-two thousand, sixty-one".