1142273317 has 8 divisors (see below), whose sum is σ = 1146176640. Its totient is φ = 1138377600.

The previous prime is 1142273303. The next prime is 1142273323. The reversal of 1142273317 is 7133722411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142273317 - 2¹¹ = 1142271269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142273417) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 484692 + ... + 487042.

It is an arithmetic number, because the mean of its divisors is an integer number (143272080).

Almost surely, 2^1142273317 is an apocalyptic number.

It is an amenable number.

1142273317 is a deficient number, since it is larger than the sum of its proper divisors (3903323).

1142273317 is an equidigital number, since it uses as much as digits as its factorization.

1142273317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803.

The product of its digits is 7056, while the sum is 31.

The square root of 1142273317 is about 33797.5341852035. The cubic root of 1142273317 is about 1045.3378537172.

Adding to 1142273317 its reverse (7133722411), we get a palindrome (8275995728).

The spelling of 1142273317 in words is "one billion, one hundred forty-two million, two hundred seventy-three thousand, three hundred seventeen".