1142122 has 8 divisors (see below), whose sum is σ = 1742400. Its totient is φ = 561324.

The previous prime is 1142083. The next prime is 1142129. The reversal of 1142122 is 2212411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1142129) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4722 + ... + 4957.

It is an arithmetic number, because the mean of its divisors is an integer number (217800).

2^1142122 is an apocalyptic number.

1142122 is a deficient number, since it is larger than the sum of its proper divisors (600278).

1142122 is an equidigital number, since it uses as much as digits as its factorization.

1142122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9740.

The product of its digits is 32, while the sum is 13.

The square root of 1142122 is about 1068.7010807518. The cubic root of 1142122 is about 104.5291693027.

Adding to 1142122 its reverse (2212411), we get a palindrome (3354533).

The spelling of 1142122 in words is "one million, one hundred forty-two thousand, one hundred twenty-two".