546311231 has 2 divisors, whose sum is σ = 546311232. Its totient is φ = 546311230.

The previous prime is 546311209. The next prime is 546311239. The reversal of 546311231 is 132113645.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-546311231 is a prime.

It is a super-2 number, since 2×546311231² = 596911922233470722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 546311231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546311239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273155615 + 273155616.

It is an arithmetic number, because the mean of its divisors is an integer number (273155616).

Almost surely, 2^546311231 is an apocalyptic number.

546311231 is a deficient number, since it is larger than the sum of its proper divisors (1).

546311231 is an equidigital number, since it uses as much as digits as its factorization.

546311231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 26.

The square root of 546311231 is about 23373.3016709236. The cubic root of 546311231 is about 817.4854712852.

Adding to 546311231 its reverse (132113645), we get a palindrome (678424876).

The spelling of 546311231 in words is "five hundred forty-six million, three hundred eleven thousand, two hundred thirty-one".