1542734423 has 2 divisors, whose sum is σ = 1542734424. Its totient is φ = 1542734422.

The previous prime is 1542734387. The next prime is 1542734467. The reversal of 1542734423 is 3244372451.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1542734423 - 2¹⁸ = 1542472279 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1542734483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771367211 + 771367212.

It is an arithmetic number, because the mean of its divisors is an integer number (771367212).

Almost surely, 2^1542734423 is an apocalyptic number.

1542734423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542734423 is an equidigital number, since it uses as much as digits as its factorization.

1542734423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 35.

The square root of 1542734423 is about 39277.6580640954. The cubic root of 1542734423 is about 1155.4834337408.

The spelling of 1542734423 in words is "one billion, five hundred forty-two million, seven hundred thirty-four thousand, four hundred twenty-three".