1143145136 has 40 divisors (see below), whose sum is σ = 2537661984. Its totient is φ = 488678400.

The previous prime is 1143145111. The next prime is 1143145147. The reversal of 1143145136 is 6315413411.

It is a junction number, because it is equal to n+sod(n) for n = 1143145099 and 1143145108.

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, 32186 + ... + 57638.

Almost surely, 2^1143145136 is an apocalyptic number.

1143145136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1143145136 is an abundant number, since it is smaller than the sum of its proper divisors (1394516848).

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

1143145136 is a wasteful number, since it uses less digits than its factorization.

1143145136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25869 (or 25863 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 1143145136 is about 33810.4293968592. The cubic root of 1143145136 is about 1045.6037310197.

Adding to 1143145136 its reverse (6315413411), we get a palindrome (7458558547).

The spelling of 1143145136 in words is "one billion, one hundred forty-three million, one hundred forty-five thousand, one hundred thirty-six".