1542269123 has 2 divisors, whose sum is σ = 1542269124. Its totient is φ = 1542269122.

The previous prime is 1542269059. The next prime is 1542269129. The reversal of 1542269123 is 3219622451.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1542269123 - 2⁶ = 1542269059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1542269129) 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, 771134561 + 771134562.

It is an arithmetic number, because the mean of its divisors is an integer number (771134562).

Almost surely, 2^1542269123 is an apocalyptic number.

1542269123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542269123 is an equidigital number, since it uses as much as digits as its factorization.

1542269123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25920, while the sum is 35.

The square root of 1542269123 is about 39271.7344027482. The cubic root of 1542269123 is about 1155.3672546380.

The spelling of 1542269123 in words is "one billion, five hundred forty-two million, two hundred sixty-nine thousand, one hundred twenty-three".