1143235064 has 16 divisors (see below), whose sum is σ = 2157221400. Its totient is φ = 567976032.

The previous prime is 1143235063. The next prime is 1143235123. The reversal of 1143235064 is 4605323411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143235063) 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, 453854 + ... + 456365.

Almost surely, 2^1143235064 is an apocalyptic number.

It is an amenable number.

1143235064 is a deficient number, since it is larger than the sum of its proper divisors (1013986336).

1143235064 is a wasteful number, since it uses less digits than its factorization.

1143235064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 910382 (or 910378 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1143235064 is about 33811.7592562114. The cubic root of 1143235064 is about 1045.6311485317.

Adding to 1143235064 its reverse (4605323411), we get a palindrome (5748558475).

The spelling of 1143235064 in words is "one billion, one hundred forty-three million, two hundred thirty-five thousand, sixty-four".