6549154543 has 2 divisors, whose sum is σ = 6549154544. Its totient is φ = 6549154542.

The previous prime is 6549154531. The next prime is 6549154561. The reversal of 6549154543 is 3454519456.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6549154543 - 2²⁵ = 6515600111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6549154493 and 6549154502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6549154943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3274577271 + 3274577272.

It is an arithmetic number, because the mean of its divisors is an integer number (3274577272).

Almost surely, 2^6549154543 is an apocalyptic number.

6549154543 is a deficient number, since it is larger than the sum of its proper divisors (1).

6549154543 is an equidigital number, since it uses as much as digits as its factorization.

6549154543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 46.

The square root of 6549154543 is about 80926.8468618418. The cubic root of 6549154543 is about 1870.9481253953.

The spelling of 6549154543 in words is "six billion, five hundred forty-nine million, one hundred fifty-four thousand, five hundred forty-three".