1142032243 has 12 divisors (see below), whose sum is σ = 1260532504. Its totient is φ = 1033876800.

The previous prime is 1142032223. The next prime is 1142032289. The reversal of 1142032243 is 3422302411.

It is a de Polignac number, because none of the positive numbers 2^k-1142032243 is a prime.

It is a super-2 number, since 2×1142032243² = 2608475288103222098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1142032223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9580 + ... + 48742.

Almost surely, 2^1142032243 is an apocalyptic number.

1142032243 is a deficient number, since it is larger than the sum of its proper divisors (118500261).

1142032243 is a wasteful number, since it uses less digits than its factorization.

1142032243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39426 (or 39415 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1142032243 is about 33793.9675533963. The cubic root of 1142032243 is about 1045.2643098743.

Adding to 1142032243 its reverse (3422302411), we get a palindrome (4564334654).

The spelling of 1142032243 in words is "one billion, one hundred forty-two million, thirty-two thousand, two hundred forty-three".