1542043219 has 2 divisors, whose sum is σ = 1542043220. Its totient is φ = 1542043218.

The previous prime is 1542043213. The next prime is 1542043229. The reversal of 1542043219 is 9123402451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1542043219 - 2²⁹ = 1005172307 is a prime.

It is a super-2 number, since 2×1542043219² = 4755794578527763922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1542043213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771021609 + 771021610.

It is an arithmetic number, because the mean of its divisors is an integer number (771021610).

Almost surely, 2^1542043219 is an apocalyptic number.

1542043219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542043219 is an equidigital number, since it uses as much as digits as its factorization.

1542043219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1542043219 is about 39268.8581321128. The cubic root of 1542043219 is about 1155.3108410448.

The spelling of 1542043219 in words is "one billion, five hundred forty-two million, forty-three thousand, two hundred nineteen".