546312649 has 2 divisors, whose sum is σ = 546312650. Its totient is φ = 546312648.

The previous prime is 546312619. The next prime is 546312661. The reversal of 546312649 is 946213645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 540097600 + 6215049 = 23240^2 + 2493^2 .

It is a cyclic number.

It is not a de Polignac number, because 546312649 - 2¹³ = 546304457 is a prime.

It is a super-3 number, since 3×546312649³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (546312619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273156324 + 273156325.

It is an arithmetic number, because the mean of its divisors is an integer number (273156325).

Almost surely, 2^546312649 is an apocalyptic number.

It is an amenable number.

546312649 is a deficient number, since it is larger than the sum of its proper divisors (1).

546312649 is an equidigital number, since it uses as much as digits as its factorization.

546312649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 40.

The square root of 546312649 is about 23373.3320046586. The cubic root of 546312649 is about 817.4861785703.

The spelling of 546312649 in words is "five hundred forty-six million, three hundred twelve thousand, six hundred forty-nine".