1071143 has 8 divisors (see below), whose sum is σ = 1119360. Its totient is φ = 1023840.

The previous prime is 1071139. The next prime is 1071149. The reversal of 1071143 is 3411701.

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 1071143 - 2² = 1071139 is a prime.

It is a super-2 number, since 2×1071143² = 2294694652898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3221 + ... + 3537.

It is an arithmetic number, because the mean of its divisors is an integer number (139920).

2^1071143 is an apocalyptic number.

1071143 is a deficient number, since it is larger than the sum of its proper divisors (48217).

1071143 is a wasteful number, since it uses less digits than its factorization.

1071143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 1071143 is about 1034.9603857153. The cubic root of 1071143 is about 102.3173188684.

Adding to 1071143 its reverse (3411701), we get a palindrome (4482844).

The spelling of 1071143 in words is "one million, seventy-one thousand, one hundred forty-three".