1143708540 has 48 divisors (see below), whose sum is σ = 3448723488. Its totient is φ = 281528064.

The previous prime is 1143708529. The next prime is 1143708589. The reversal of 1143708540 is 458073411.

1143708540 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732367 + ... + 733926.

It is an arithmetic number, because the mean of its divisors is an integer number (71848406).

Almost surely, 2^1143708540 is an apocalyptic number.

1143708540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143708540 is an abundant number, since it is smaller than the sum of its proper divisors (2305014948).

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

1143708540 is a wasteful number, since it uses less digits than its factorization.

1143708540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466318 (or 1466316 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 1143708540 is about 33818.7601783389. The cubic root of 1143708540 is about 1045.7754795733.

The spelling of 1143708540 in words is "one billion, one hundred forty-three million, seven hundred eight thousand, five hundred forty".