546406261 has 2 divisors, whose sum is σ = 546406262. Its totient is φ = 546406260.

The previous prime is 546406253. The next prime is 546406283. The reversal of 546406261 is 162604645.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332369361 + 214036900 = 18231^2 + 14630^2 .

It is a cyclic number.

It is not a de Polignac number, because 546406261 - 2³ = 546406253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546403261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273203130 + 273203131.

It is an arithmetic number, because the mean of its divisors is an integer number (273203131).

Almost surely, 2^546406261 is an apocalyptic number.

It is an amenable number.

546406261 is a deficient number, since it is larger than the sum of its proper divisors (1).

546406261 is an equidigital number, since it uses as much as digits as its factorization.

546406261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 546406261 is about 23375.3344575003. The cubic root of 546406261 is about 817.5328686514.

The spelling of 546406261 in words is "five hundred forty-six million, four hundred six thousand, two hundred sixty-one".