1143553044 has 12 divisors (see below), whose sum is σ = 2668290464. Its totient is φ = 381184344.

The previous prime is 1143553039. The next prime is 1143553189. The reversal of 1143553044 is 4403553411.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47648032 + ... + 47648055.

Almost surely, 2^1143553044 is an apocalyptic number.

It is an amenable number.

1143553044 is an abundant number, since it is smaller than the sum of its proper divisors (1524737420).

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

1143553044 is a wasteful number, since it uses less digits than its factorization.

1143553044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95296094 (or 95296092 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 1143553044 is about 33816.4611395101. The cubic root of 1143553044 is about 1045.7280836770.

The spelling of 1143553044 in words is "one billion, one hundred forty-three million, five hundred fifty-three thousand, forty-four".