1122742 has 8 divisors (see below), whose sum is σ = 1692216. Its totient is φ = 558672.

The previous prime is 1122739. The next prime is 1122749. The reversal of 1122742 is 2472211.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 783 + ... + 1690.

It is an arithmetic number, because the mean of its divisors is an integer number (211527).

2^1122742 is an apocalyptic number.

1122742 is a deficient number, since it is larger than the sum of its proper divisors (569474).

1122742 is a wasteful number, since it uses less digits than its factorization.

1122742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2702.

The product of its digits is 224, while the sum is 19.

The square root of 1122742 is about 1059.5952057272. The cubic root of 1122742 is about 103.9345618914.

Adding to 1122742 its reverse (2472211), we get a palindrome (3594953).

The spelling of 1122742 in words is "one million, one hundred twenty-two thousand, seven hundred forty-two".