1143100854 has 24 divisors (see below), whose sum is σ = 2830535760. Its totient is φ = 326600208.

The previous prime is 1143100843. The next prime is 1143100867. The reversal of 1143100854 is 4580013411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 4535989 + ... + 4536240.

It is an arithmetic number, because the mean of its divisors is an integer number (117938990).

Almost surely, 2^1143100854 is an apocalyptic number.

1143100854 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1143100854 is an abundant number, since it is smaller than the sum of its proper divisors (1687434906).

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

1143100854 is a wasteful number, since it uses less digits than its factorization.

1143100854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072244 (or 9072241 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1143100854 is about 33809.7745334097. The cubic root of 1143100854 is about 1045.5902296654.

The spelling of 1143100854 in words is "one billion, one hundred forty-three million, one hundred thousand, eight hundred fifty-four".