1142236 has 6 divisors (see below), whose sum is σ = 1998920. Its totient is φ = 571116.

The previous prime is 1142233. The next prime is 1142237. The reversal of 1142236 is 6322411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142776 + ... + 142783.

2^1142236 is an apocalyptic number.

It is an amenable number.

1142236 is a deficient number, since it is larger than the sum of its proper divisors (856684).

1142236 is a wasteful number, since it uses less digits than its factorization.

1142236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285563 (or 285561 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 1142236 is about 1068.7544151956. The cubic root of 1142236 is about 104.5326470190.

Adding to 1142236 its reverse (6322411), we get a palindrome (7464647).

It can be divided in two parts, 1142 and 236, that added together give a triangular number (1378 = T₅₂).

The spelling of 1142236 in words is "one million, one hundred forty-two thousand, two hundred thirty-six".