1143053540 has 24 divisors (see below), whose sum is σ = 2504779200. Its totient is φ = 437342048.

The previous prime is 1143053539. The next prime is 1143053557. The reversal of 1143053540 is 453503411.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241990 + ... + 1242909.

It is an arithmetic number, because the mean of its divisors is an integer number (104365800).

Almost surely, 2^1143053540 is an apocalyptic number.

1143053540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143053540 is an abundant number, since it is smaller than the sum of its proper divisors (1361725660).

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

1143053540 is a wasteful number, since it uses less digits than its factorization.

1143053540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2484931 (or 2484929 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1143053540 is about 33809.0748172735. The cubic root of 1143053540 is about 1045.5758034846.

Adding to 1143053540 its reverse (453503411), we get a palindrome (1596556951).

The spelling of 1143053540 in words is "one billion, one hundred forty-three million, fifty-three thousand, five hundred forty".