6212561 has 2 divisors, whose sum is σ = 6212562. Its totient is φ = 6212560.

The previous prime is 6212551. The next prime is 6212587. The reversal of 6212561 is 1652126.

6212561 is nontrivially palindromic in base 11.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6031936 + 180625 = 2456^2 + 425^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6212561 is a prime.

It is not a weakly prime, because it can be changed into another prime (6212551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3106280 + 3106281.

It is an arithmetic number, because the mean of its divisors is an integer number (3106281).

Almost surely, 2^6212561 is an apocalyptic number.

It is an amenable number.

6212561 is a deficient number, since it is larger than the sum of its proper divisors (1).

6212561 is an equidigital number, since it uses as much as digits as its factorization.

6212561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 23.

The square root of 6212561 is about 2492.5009528584. The cubic root of 6212561 is about 183.8330341862.

Adding to 6212561 its reverse (1652126), we get a palindrome (7864687).

The spelling of 6212561 in words is "six million, two hundred twelve thousand, five hundred sixty-one".