1143930 has 32 divisors (see below), whose sum is σ = 2908224. Its totient is φ = 286976.

The previous prime is 1143893. The next prime is 1143943. The reversal of 1143930 is 393411.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1143897 and 1143906.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612 + ... + 1631.

It is an arithmetic number, because the mean of its divisors is an integer number (90882).

2^1143930 is an apocalyptic number.

1143930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1143930 is an abundant number, since it is smaller than the sum of its proper divisors (1764294).

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

1143930 is a wasteful number, since it uses less digits than its factorization.

1143930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2270.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1143930 is about 1069.5466329244. The cubic root of 1143930 is about 104.5842974185.

The spelling of 1143930 in words is "one million, one hundred forty-three thousand, nine hundred thirty".