1143254532 has 48 divisors (see below), whose sum is σ = 3068132480. Its totient is φ = 324559872.

The previous prime is 1143254531. The next prime is 1143254551. The reversal of 1143254532 is 2354523411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143254532.

It is not an unprimeable number, because it can be changed into a prime (1143254531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30157 + ... + 56532.

Almost surely, 2^1143254532 is an apocalyptic number.

1143254532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1143254532 is an abundant number, since it is smaller than the sum of its proper divisors (1924877948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143254532 is a wasteful number, since it uses less digits than its factorization.

1143254532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86860 (or 86858 counting only the distinct ones).

The product of its digits is 14400, while the sum is 30.

The square root of 1143254532 is about 33812.0471429933. The cubic root of 1143254532 is about 1045.6370838033.

Adding to 1143254532 its reverse (2354523411), we get a palindrome (3497777943).

The spelling of 1143254532 in words is "one billion, one hundred forty-three million, two hundred fifty-four thousand, five hundred thirty-two".