1142056 has 8 divisors (see below), whose sum is σ = 2141370. Its totient is φ = 571024.

The previous prime is 1142041. The next prime is 1142059. The reversal of 1142056 is 6502411.

It can be written as a sum of positive squares in only one way, i.e., 1069156 + 72900 = 1034^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1142059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71371 + ... + 71386.

2^1142056 is an apocalyptic number.

It is an amenable number.

1142056 is a deficient number, since it is larger than the sum of its proper divisors (999314).

1142056 is a wasteful number, since it uses less digits than its factorization.

1142056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142763 (or 142759 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1142056 is about 1068.6702016993. The cubic root of 1142056 is about 104.5271557823.

Adding to 1142056 its reverse (6502411), we get a palindrome (7644467).

It can be divided in two parts, 11420 and 56, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 1142056 in words is "one million, one hundred forty-two thousand, fifty-six".