1142422 has 4 divisors (see below), whose sum is σ = 1713636. Its totient is φ = 571210.

The previous prime is 1142389. The next prime is 1142423. The reversal of 1142422 is 2242411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2242411 = 83 ⋅27017.

It is a junction number, because it is equal to n+sod(n) for n = 1142396 and 1142405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142423) 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 as a sum of consecutive naturals, namely, 285604 + ... + 285607.

It is an arithmetic number, because the mean of its divisors is an integer number (428409).

2^1142422 is an apocalyptic number.

1142422 is a deficient number, since it is larger than the sum of its proper divisors (571214).

1142422 is an equidigital number, since it uses as much as digits as its factorization.

1142422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571213.

The product of its digits is 128, while the sum is 16.

The square root of 1142422 is about 1068.8414288378. The cubic root of 1142422 is about 104.5383206910.

Adding to 1142422 its reverse (2242411), we get a palindrome (3384833).

It can be divided in two parts, 114242 and 2, that multiplied together give a square (228484 = 478²).

The spelling of 1142422 in words is "one million, one hundred forty-two thousand, four hundred twenty-two".