1142543260 has 48 divisors (see below), whose sum is σ = 2486181600. Its totient is φ = 440770304.

The previous prime is 1142543251. The next prime is 1142543263. The reversal of 1142543260 is 623452411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142543263) 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, 53406 + ... + 71674.

It is an arithmetic number, because the mean of its divisors is an integer number (51795450).

Almost surely, 2^1142543260 is an apocalyptic number.

1142543260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1142543260 is an abundant number, since it is smaller than the sum of its proper divisors (1343638340).

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

1142543260 is a wasteful number, since it uses less digits than its factorization.

1142543260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18390 (or 18388 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1142543260 is about 33801.5274802782. The cubic root of 1142543260 is about 1045.4201922744.

Adding to 1142543260 its reverse (623452411), we get a palindrome (1765995671).

The spelling of 1142543260 in words is "one billion, one hundred forty-two million, five hundred forty-three thousand, two hundred sixty".