1143301240 has 16 divisors (see below), whose sum is σ = 2572427880. Its totient is φ = 457320480.

The previous prime is 1143301183. The next prime is 1143301259. The reversal of 1143301240 is 421033411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14291226 + ... + 14291305.

Almost surely, 2^1143301240 is an apocalyptic number.

1143301240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143301240 is an abundant number, since it is smaller than the sum of its proper divisors (1429126640).

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

1143301240 is a wasteful number, since it uses less digits than its factorization.

1143301240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28582542 (or 28582538 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1143301240 is about 33812.7378365018. The cubic root of 1143301240 is about 1045.6513235462.

Adding to 1143301240 its reverse (421033411), we get a palindrome (1564334651).

The spelling of 1143301240 in words is "one billion, one hundred forty-three million, three hundred one thousand, two hundred forty".