1142345122 has 4 divisors (see below), whose sum is σ = 1713517686. Its totient is φ = 571172560.

The previous prime is 1142345101. The next prime is 1142345131. The reversal of 1142345122 is 2215432411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 857376961 + 284968161 = 29281^2 + 16881^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285586279 + ... + 285586282.

Almost surely, 2^1142345122 is an apocalyptic number.

1142345122 is a deficient number, since it is larger than the sum of its proper divisors (571172564).

1142345122 is an equidigital number, since it uses as much as digits as its factorization.

1142345122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571172563.

The product of its digits is 1920, while the sum is 25.

The square root of 1142345122 is about 33798.5964501486. The cubic root of 1142345122 is about 1045.3597570891.

Adding to 1142345122 its reverse (2215432411), we get a palindrome (3357777533).

The spelling of 1142345122 in words is "one billion, one hundred forty-two million, three hundred forty-five thousand, one hundred twenty-two".