1155424144 has 40 divisors (see below), whose sum is σ = 2593504640. Its totient is φ = 488395008.

The previous prime is 1155424139. The next prime is 1155424169. The reversal of 1155424144 is 4414245511.

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, 62484 + ... + 78835.

It is an arithmetic number, because the mean of its divisors is an integer number (64837616).

Almost surely, 2^1155424144 is an apocalyptic number.

1155424144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1155424144 is an abundant number, since it is smaller than the sum of its proper divisors (1438080496).

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

1155424144 is a wasteful number, since it uses less digits than its factorization.

1155424144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141407 (or 141401 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 1155424144 is about 33991.5304745167. The cubic root of 1155424144 is about 1049.3341641065.

Adding to 1155424144 its reverse (4414245511), we get a palindrome (5569669655).

The spelling of 1155424144 in words is "one billion, one hundred fifty-five million, four hundred twenty-four thousand, one hundred forty-four".