1142156283 has 4 divisors (see below), whose sum is σ = 1522875048. Its totient is φ = 761437520.

The previous prime is 1142156273. The next prime is 1142156297. The reversal of 1142156283 is 3826512411.

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

It is a cyclic number.

It is not a de Polignac number, because 1142156283 - 2¹⁷ = 1142025211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1142156233) 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, 190359378 + ... + 190359383.

It is an arithmetic number, because the mean of its divisors is an integer number (380718762).

Almost surely, 2^1142156283 is an apocalyptic number.

1142156283 is a deficient number, since it is larger than the sum of its proper divisors (380718765).

1142156283 is an equidigital number, since it uses as much as digits as its factorization.

1142156283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380718764.

The product of its digits is 11520, while the sum is 33.

The square root of 1142156283 is about 33795.8027423525. The cubic root of 1142156283 is about 1045.3021517397.

Adding to 1142156283 its reverse (3826512411), we get a palindrome (4968668694).

The spelling of 1142156283 in words is "one billion, one hundred forty-two million, one hundred fifty-six thousand, two hundred eighty-three".