1143772 has 12 divisors (see below), whose sum is σ = 2287600. Its totient is φ = 490176.

The previous prime is 1143763. The next prime is 1143799. The reversal of 1143772 is 2773411.

It is a happy number.

1143772 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20397 + ... + 20452.

2^1143772 is an apocalyptic number.

It is an amenable number.

1143772 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1143772 is a wasteful number, since it uses less digits than its factorization.

1143772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40860 (or 40858 counting only the distinct ones).

The product of its digits is 1176, while the sum is 25.

The square root of 1143772 is about 1069.4727673017. The cubic root of 1143772 is about 104.5794821239.

The spelling of 1143772 in words is "one million, one hundred forty-three thousand, seven hundred seventy-two".