546312661 has 2 divisors, whose sum is σ = 546312662. Its totient is φ = 546312660.

The previous prime is 546312649. The next prime is 546312703. The reversal of 546312661 is 166213645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546110161 + 202500 = 23369^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 546312661 - 2²⁵ = 512758229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546312601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273156330 + 273156331.

It is an arithmetic number, because the mean of its divisors is an integer number (273156331).

Almost surely, 2^546312661 is an apocalyptic number.

It is an amenable number.

546312661 is a deficient number, since it is larger than the sum of its proper divisors (1).

546312661 is an equidigital number, since it uses as much as digits as its factorization.

546312661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 34.

The square root of 546312661 is about 23373.3322613615. The cubic root of 546312661 is about 817.4861845558.

The spelling of 546312661 in words is "five hundred forty-six million, three hundred twelve thousand, six hundred sixty-one".