543115457 has 2 divisors, whose sum is σ = 543115458. Its totient is φ = 543115456.

The previous prime is 543115427. The next prime is 543115459. The reversal of 543115457 is 754511345.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 541772176 + 1343281 = 23276^2 + 1159^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-543115457 is a prime.

Together with 543115459, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (543115459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271557728 + 271557729.

It is an arithmetic number, because the mean of its divisors is an integer number (271557729).

Almost surely, 2^543115457 is an apocalyptic number.

It is an amenable number.

543115457 is a deficient number, since it is larger than the sum of its proper divisors (1).

543115457 is an equidigital number, since it uses as much as digits as its factorization.

543115457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 543115457 is about 23304.8376308439. The cubic root of 543115457 is about 815.8883294456. Note that the first 3 decimals are identical.

The spelling of 543115457 in words is "five hundred forty-three million, one hundred fifteen thousand, four hundred fifty-seven".