1142445553 has 4 divisors (see below), whose sum is σ = 1143374848. Its totient is φ = 1141516260.

The previous prime is 1142445541. The next prime is 1142445571. The reversal of 1142445553 is 3555442411.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142445553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142445523) 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 3 ways as a sum of consecutive naturals, for example, 462801 + ... + 465262.

It is an arithmetic number, because the mean of its divisors is an integer number (285843712).

Almost surely, 2^1142445553 is an apocalyptic number.

It is an amenable number.

1142445553 is a deficient number, since it is larger than the sum of its proper divisors (929295).

1142445553 is an equidigital number, since it uses as much as digits as its factorization.

1142445553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 929294.

The product of its digits is 48000, while the sum is 34.

The square root of 1142445553 is about 33800.0821448706. The cubic root of 1142445553 is about 1045.3903909863.

Adding to 1142445553 its reverse (3555442411), we get a palindrome (4697887964).

The spelling of 1142445553 in words is "one billion, one hundred forty-two million, four hundred forty-five thousand, five hundred fifty-three".