1143571234 has 16 divisors (see below), whose sum is σ = 1848039480. Its totient is φ = 527592960.

The previous prime is 1143571229. The next prime is 1143571237. The reversal of 1143571234 is 4321753411.

It can be written as a sum of positive squares in 4 ways, for example, as 1072759009 + 70812225 = 32753^2 + 8415^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1143571196 and 1143571205.

It is not an unprimeable number, because it can be changed into a prime (1143571237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72402 + ... + 86770.

Almost surely, 2^1143571234 is an apocalyptic number.

1143571234 is a deficient number, since it is larger than the sum of its proper divisors (704468246).

1143571234 is a wasteful number, since it uses less digits than its factorization.

1143571234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17445.

The product of its digits is 10080, while the sum is 31.

The square root of 1143571234 is about 33816.7300902970. The cubic root of 1143571234 is about 1045.7336282946.

The spelling of 1143571234 in words is "one billion, one hundred forty-three million, five hundred seventy-one thousand, two hundred thirty-four".