543461278 has 4 divisors (see below), whose sum is σ = 815191920. Its totient is φ = 271730638.

The previous prime is 543461267. The next prime is 543461299. The reversal of 543461278 is 872164345.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 543461278.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135865318 + ... + 135865321.

It is an arithmetic number, because the mean of its divisors is an integer number (203797980).

Almost surely, 2^543461278 is an apocalyptic number.

543461278 is a deficient number, since it is larger than the sum of its proper divisors (271730642).

543461278 is a wasteful number, since it uses less digits than its factorization.

543461278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271730641.

The product of its digits is 161280, while the sum is 40.

The square root of 543461278 is about 23312.2559611892. The cubic root of 543461278 is about 816.0614611130.

The spelling of 543461278 in words is "five hundred forty-three million, four hundred sixty-one thousand, two hundred seventy-eight".