1143026264 has 8 divisors (see below), whose sum is σ = 2143174260. Its totient is φ = 571513128.

The previous prime is 1143026251. The next prime is 1143026267. The reversal of 1143026264 is 4626203411.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143026267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71439134 + ... + 71439149.

Almost surely, 2^1143026264 is an apocalyptic number.

It is an amenable number.

1143026264 is a deficient number, since it is larger than the sum of its proper divisors (1000147996).

1143026264 is a wasteful number, since it uses less digits than its factorization.

1143026264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142878289 (or 142878285 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 1143026264 is about 33808.6714320454. The cubic root of 1143026264 is about 1045.5674867694.

Adding to 1143026264 its reverse (4626203411), we get a palindrome (5769229675).

The spelling of 1143026264 in words is "one billion, one hundred forty-three million, twenty-six thousand, two hundred sixty-four".