1027143 has 12 divisors (see below), whose sum is σ = 1597960. Its totient is φ = 632016.

The previous prime is 1027139. The next prime is 1027153. The reversal of 1027143 is 3417201.

It is not a de Polignac number, because 1027143 - 2² = 1027139 is a prime.

1027143 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4273 + ... + 4506.

2^1027143 is an apocalyptic number.

1027143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1027143 is a deficient number, since it is larger than the sum of its proper divisors (570817).

1027143 is a wasteful number, since it uses less digits than its factorization.

1027143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8798 (or 8795 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1027143 is about 1013.4806362235. The cubic root of 1027143 is about 100.8967018900.

The spelling of 1027143 in words is "one million, twenty-seven thousand, one hundred forty-three".