540326819 has 2 divisors, whose sum is σ = 540326820. Its totient is φ = 540326818.

The previous prime is 540326803. The next prime is 540326821. The reversal of 540326819 is 918623045.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 540326819 - 2⁴ = 540326803 is a prime.

It is a super-2 number, since 2×540326819² = 583906142661317522, which contains 22 as substring.

Together with 540326821, 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 (540326719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270163409 + 270163410.

It is an arithmetic number, because the mean of its divisors is an integer number (270163410).

Almost surely, 2^540326819 is an apocalyptic number.

540326819 is a deficient number, since it is larger than the sum of its proper divisors (1).

540326819 is an equidigital number, since it uses as much as digits as its factorization.

540326819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 540326819 is about 23244.9310388308. The cubic root of 540326819 is about 814.4895339308.

It can be divided in two parts, 540326 and 819, that added together give a palindrome (541145).

The spelling of 540326819 in words is "five hundred forty million, three hundred twenty-six thousand, eight hundred nineteen".