1142534993 has 2 divisors, whose sum is σ = 1142534994. Its totient is φ = 1142534992.

The previous prime is 1142534989. The next prime is 1142535029. The reversal of 1142534993 is 3994352411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 760215184 + 382319809 = 27572^2 + 19553^2 .

It is a cyclic number.

It is not a de Polignac number, because 1142534993 - 2² = 1142534989 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142534993.

It is not a weakly prime, because it can be changed into another prime (1142534933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571267496 + 571267497.

It is an arithmetic number, because the mean of its divisors is an integer number (571267497).

Almost surely, 2^1142534993 is an apocalyptic number.

It is an amenable number.

1142534993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142534993 is an equidigital number, since it uses as much as digits as its factorization.

1142534993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 41.

The square root of 1142534993 is about 33801.4051926839. The cubic root of 1142534993 is about 1045.4176708499.

The spelling of 1142534993 in words is "one billion, one hundred forty-two million, five hundred thirty-four thousand, nine hundred ninety-three".