1142353544 has 8 divisors (see below), whose sum is σ = 2141912910. Its totient is φ = 571176768.

The previous prime is 1142353543. The next prime is 1142353547. The reversal of 1142353544 is 4453532411.

It can be written as a sum of positive squares in only one way, i.e., 1124797444 + 17556100 = 33538^2 + 4190^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1142353544.

It is not an unprimeable number, because it can be changed into a prime (1142353543) 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, 71397089 + ... + 71397104.

Almost surely, 2^1142353544 is an apocalyptic number.

It is an amenable number.

1142353544 is a deficient number, since it is larger than the sum of its proper divisors (999559366).

1142353544 is a wasteful number, since it uses less digits than its factorization.

1142353544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142794199 (or 142794195 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 1142353544 is about 33798.7210408915. The cubic root of 1142353544 is about 1045.3623260728.

Adding to 1142353544 its reverse (4453532411), we get a palindrome (5595885955).

The spelling of 1142353544 in words is "one billion, one hundred forty-two million, three hundred fifty-three thousand, five hundred forty-four".