1083987143 has 8 divisors (see below), whose sum is σ = 1121886480. Its totient is φ = 1046122560.

The previous prime is 1083987139. The next prime is 1083987211. The reversal of 1083987143 is 3417893801.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1083987143 - 2² = 1083987139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1083987094 and 1083987103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1083987103) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 65696 + ... + 80522.

It is an arithmetic number, because the mean of its divisors is an integer number (140235810).

Almost surely, 2^1083987143 is an apocalyptic number.

1083987143 is a deficient number, since it is larger than the sum of its proper divisors (37899337).

1083987143 is a wasteful number, since it uses less digits than its factorization.

1083987143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17377.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 1083987143 is about 32923.9600139473. The cubic root of 1083987143 is about 1027.2465949807.

The spelling of 1083987143 in words is "one billion, eighty-three million, nine hundred eighty-seven thousand, one hundred forty-three".