1121446142 has 8 divisors (see below), whose sum is σ = 1736432832. Its totient is φ = 542635200.

The previous prime is 1121446141. The next prime is 1121446223. The reversal of 1121446142 is 2416441211.

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 (1121446141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9043859 + ... + 9043982.

It is an arithmetic number, because the mean of its divisors is an integer number (217054104).

Almost surely, 2^1121446142 is an apocalyptic number.

1121446142 is a deficient number, since it is larger than the sum of its proper divisors (614986690).

1121446142 is a wasteful number, since it uses less digits than its factorization.

1121446142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18087874.

The product of its digits is 1536, while the sum is 26.

The square root of 1121446142 is about 33487.9999701386. Note that the first 4 decimals coincide. The cubic root of 1121446142 is about 1038.9455974069.

Adding to 1121446142 its reverse (2416441211), we get a palindrome (3537887353).

The spelling of 1121446142 in words is "one billion, one hundred twenty-one million, four hundred forty-six thousand, one hundred forty-two".