1143572 has 24 divisors (see below), whose sum is σ = 2163840. Its totient is φ = 527040.

The previous prime is 1143563. The next prime is 1143577. The reversal of 1143572 is 2753411.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143577) 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, 2933 + ... + 3299.

It is an arithmetic number, because the mean of its divisors is an integer number (90160).

2^1143572 is an apocalyptic number.

It is an amenable number.

1143572 is a deficient number, since it is larger than the sum of its proper divisors (1020268).

1143572 is a wasteful number, since it uses less digits than its factorization.

1143572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 429 counting only the distinct ones).

The product of its digits is 840, while the sum is 23.

The square root of 1143572 is about 1069.3792591967. The cubic root of 1143572 is about 104.5733861783.

Adding to 1143572 its reverse (2753411), we get a palindrome (3896983).

It can be divided in two parts, 1143 and 572, that multiplied together give a triangular number (653796 = T₁₁₄₃).

The spelling of 1143572 in words is "one million, one hundred forty-three thousand, five hundred seventy-two".