20607061 has 2 divisors, whose sum is σ = 20607062. Its totient is φ = 20607060.

The previous prime is 20607053. The next prime is 20607073. The reversal of 20607061 is 16070602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18326961 + 2280100 = 4281^2 + 1510^2 .

It is a cyclic number.

It is not a de Polignac number, because 20607061 - 2³ = 20607053 is a prime.

It is a Chen prime.

It is the 4540-th Hogben number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20607361) by changing a digit.

It is a nontrivial repunit in base 4539.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10303530 + 10303531.

It is an arithmetic number, because the mean of its divisors is an integer number (10303531).

Almost surely, 2^20607061 is an apocalyptic number.

It is an amenable number.

20607061 is a deficient number, since it is larger than the sum of its proper divisors (1).

20607061 is an equidigital number, since it uses as much as digits as its factorization.

20607061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 20607061 is about 4539.5000826082. The cubic root of 20607061 is about 274.1607959169.

Adding to 20607061 its reverse (16070602), we get a palindrome (36677663).

The spelling of 20607061 in words is "twenty million, six hundred seven thousand, sixty-one".