1143146260 has 24 divisors (see below), whose sum is σ = 2427584040. Its totient is φ = 452120064.

The previous prime is 1143146237. The next prime is 1143146287. The reversal of 1143146260 is 626413411.

It can be written as a sum of positive squares in 4 ways, for example, as 3678724 + 1139467536 = 1918^2 + 33756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 319329 + ... + 322888.

It is an arithmetic number, because the mean of its divisors is an integer number (101149335).

Almost surely, 2^1143146260 is an apocalyptic number.

1143146260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143146260 is an abundant number, since it is smaller than the sum of its proper divisors (1284437780).

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

1143146260 is a wasteful number, since it uses less digits than its factorization.

1143146260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642315 (or 642313 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1143146260 is about 33810.4460189451. The cubic root of 1143146260 is about 1045.6040737169.

Adding to 1143146260 its reverse (626413411), we get a palindrome (1769559671).

The spelling of 1143146260 in words is "one billion, one hundred forty-three million, one hundred forty-six thousand, two hundred sixty".