1542434393 has 2 divisors, whose sum is σ = 1542434394. Its totient is φ = 1542434392.

The previous prime is 1542434371. The next prime is 1542434437. The reversal of 1542434393 is 3934342451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1094815744 + 447618649 = 33088^2 + 21157^2 .

It is a cyclic number.

It is not a de Polignac number, because 1542434393 - 2⁶ = 1542434329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1542434323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 771217196 + 771217197.

It is an arithmetic number, because the mean of its divisors is an integer number (771217197).

Almost surely, 2^1542434393 is an apocalyptic number.

It is an amenable number.

1542434393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1542434393 is an equidigital number, since it uses as much as digits as its factorization.

1542434393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 155520, while the sum is 38.

The square root of 1542434393 is about 39273.8385315212. The cubic root of 1542434393 is about 1155.4085229923.

The spelling of 1542434393 in words is "one billion, five hundred forty-two million, four hundred thirty-four thousand, three hundred ninety-three".