1012143 has 8 divisors (see below), whose sum is σ = 1472256. Its totient is φ = 613400.

The previous prime is 1012133. The next prime is 1012147. The reversal of 1012143 is 3412101.

It is a happy number.

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 1012143 - 2⁶ = 1012079 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012147) 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, 15303 + ... + 15368.

It is an arithmetic number, because the mean of its divisors is an integer number (184032).

2^1012143 is an apocalyptic number.

1012143 is a deficient number, since it is larger than the sum of its proper divisors (460113).

1012143 is a wasteful number, since it uses less digits than its factorization.

1012143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30685.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1012143 is about 1006.0531795089. The cubic root of 1012143 is about 100.4031392700.

Adding to 1012143 its reverse (3412101), we get a palindrome (4424244).

The spelling of 1012143 in words is "one million, twelve thousand, one hundred forty-three".