1143626140 has 12 divisors (see below), whose sum is σ = 2401614936. Its totient is φ = 457450448.

The previous prime is 1143626129. The next prime is 1143626179. The reversal of 1143626140 is 416263411.

It is a junction number, because it is equal to n+sod(n) for n = 1143626099 and 1143626108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28590634 + ... + 28590673.

It is an arithmetic number, because the mean of its divisors is an integer number (200134578).

Almost surely, 2^1143626140 is an apocalyptic number.

1143626140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143626140 is an abundant number, since it is smaller than the sum of its proper divisors (1257988796).

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

1143626140 is a wasteful number, since it uses less digits than its factorization.

1143626140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57181316 (or 57181314 counting only the distinct ones).

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

The square root of 1143626140 is about 33817.5418976602. The cubic root of 1143626140 is about 1045.7503642093.

Adding to 1143626140 its reverse (416263411), we get a palindrome (1559889551).

The spelling of 1143626140 in words is "one billion, one hundred forty-three million, six hundred twenty-six thousand, one hundred forty".