1142086223 has 4 divisors (see below), whose sum is σ = 1144174680. Its totient is φ = 1139997768.

The previous prime is 1142086213. The next prime is 1142086247. The reversal of 1142086223 is 3226802411.

It is a happy number.

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 1142086223 - 2¹⁰ = 1142085199 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 (1142086213) 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, 1043408 + ... + 1044501.

It is an arithmetic number, because the mean of its divisors is an integer number (286043670).

Almost surely, 2^1142086223 is an apocalyptic number.

1142086223 is a deficient number, since it is larger than the sum of its proper divisors (2088457).

1142086223 is an equidigital number, since it uses as much as digits as its factorization.

1142086223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2088456.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1142086223 is about 33794.7662072103. The cubic root of 1142086223 is about 1045.2807783172.

Adding to 1142086223 its reverse (3226802411), we get a palindrome (4368888634).

The spelling of 1142086223 in words is "one billion, one hundred forty-two million, eighty-six thousand, two hundred twenty-three".