1142045553 has 12 divisors (see below), whose sum is σ = 1673742224. Its totient is φ = 692148600.

The previous prime is 1142045551. The next prime is 1142045573. The reversal of 1142045553 is 3555402411.

It is not a de Polignac number, because 1142045553 - 2¹ = 1142045551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1142045553.

It is not an unprimeable number, because it can be changed into a prime (1142045551) 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 in 11 ways as a sum of consecutive naturals, for example, 1572703 + ... + 1573428.

Almost surely, 2^1142045553 is an apocalyptic number.

It is an amenable number.

1142045553 is a deficient number, since it is larger than the sum of its proper divisors (531696671).

1142045553 is a wasteful number, since it uses less digits than its factorization.

1142045553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3146156 (or 3146145 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 1142045553 is about 33794.1644814604. The cubic root of 1142045553 is about 1045.2683705926.

Adding to 1142045553 its reverse (3555402411), we get a palindrome (4697447964).

The spelling of 1142045553 in words is "one billion, one hundred forty-two million, forty-five thousand, five hundred fifty-three".