1143042434 has 4 divisors (see below), whose sum is σ = 1714563654. Its totient is φ = 571521216.

The previous prime is 1143042409. The next prime is 1143042437. The reversal of 1143042434 is 4342403411.

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., 1104565225 + 38477209 = 33235^2 + 6203^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1143042437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285760607 + ... + 285760610.

Almost surely, 2^1143042434 is an apocalyptic number.

1143042434 is a deficient number, since it is larger than the sum of its proper divisors (571521220).

1143042434 is an equidigital number, since it uses as much as digits as its factorization.

1143042434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571521219.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 1143042434 is about 33808.9105710314. The cubic root of 1143042434 is about 1045.5724171742.

Adding to 1143042434 its reverse (4342403411), we get a palindrome (5485445845).

The spelling of 1143042434 in words is "one billion, one hundred forty-three million, forty-two thousand, four hundred thirty-four".