1143854 has 8 divisors (see below), whose sum is σ = 1723680. Its totient is φ = 569296.

The previous prime is 1143851. The next prime is 1143887. The reversal of 1143854 is 4583411.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719 + ... + 1674.

It is an arithmetic number, because the mean of its divisors is an integer number (215460).

2^1143854 is an apocalyptic number.

1143854 is a deficient number, since it is larger than the sum of its proper divisors (579826).

1143854 is a wasteful number, since it uses less digits than its factorization.

1143854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634.

The product of its digits is 1920, while the sum is 26.

The square root of 1143854 is about 1069.5111032617. The cubic root of 1143854 is about 104.5819812562.

Subtracting from 1143854 its sum of digits (26), we obtain a triangular number (1143828 = T₁₅₁₂).

The spelling of 1143854 in words is "one million, one hundred forty-three thousand, eight hundred fifty-four".