541493819 has 2 divisors, whose sum is σ = 541493820. Its totient is φ = 541493818.

The previous prime is 541493801. The next prime is 541493831. The reversal of 541493819 is 918394145.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 541493819 - 2¹² = 541489723 is a prime.

It is a super-2 number, since 2×541493819² = 586431112030409522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 541493819.

It is not a weakly prime, because it can be changed into another prime (541493419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270746909 + 270746910.

It is an arithmetic number, because the mean of its divisors is an integer number (270746910).

Almost surely, 2^541493819 is an apocalyptic number.

541493819 is a deficient number, since it is larger than the sum of its proper divisors (1).

541493819 is an equidigital number, since it uses as much as digits as its factorization.

541493819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 44.

The square root of 541493819 is about 23270.0197464463. The cubic root of 541493819 is about 815.0754915205.

The spelling of 541493819 in words is "five hundred forty-one million, four hundred ninety-three thousand, eight hundred nineteen".