1143906 has 16 divisors (see below), whose sum is σ = 2316384. Its totient is φ = 376544.

The previous prime is 1143893. The next prime is 1143943. The reversal of 1143906 is 6093411.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (144774).

2^1143906 is an apocalyptic number.

1143906 is an abundant number, since it is smaller than the sum of its proper divisors (1172478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143906 is a wasteful number, since it uses less digits than its factorization.

1143906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385.

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1143906 is about 1069.5354131584. The cubic root of 1143906 is about 104.5835660099.

The spelling of 1143906 in words is "one million, one hundred forty-three thousand, nine hundred six".