1143540144 has 60 divisors (see below), whose sum is σ = 3206103576. Its totient is φ = 380491776.

The previous prime is 1143540091. The next prime is 1143540157. The reversal of 1143540144 is 4410453411.

1143540144 is a `hidden beast` number, since 114 + 3 + 540 + 1 + 4 + 4 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76207 + ... + 89969.

Almost surely, 2^1143540144 is an apocalyptic number.

It is an amenable number.

1143540144 is an abundant number, since it is smaller than the sum of its proper divisors (2062563432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143540144 is a wasteful number, since it uses less digits than its factorization.

1143540144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14354 (or 14345 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 1143540144 is about 33816.2704034611. The cubic root of 1143540144 is about 1045.7241515047.

Adding to 1143540144 its reverse (4410453411), we get a palindrome (5553993555).

The spelling of 1143540144 in words is "one billion, one hundred forty-three million, five hundred forty thousand, one hundred forty-four".