1155144324 has 24 divisors (see below), whose sum is σ = 2698139808. Its totient is φ = 384647680.

The previous prime is 1155144323. The next prime is 1155144337. The reversal of 1155144324 is 4234415511.

It is a junction number, because it is equal to n+sod(n) for n = 1155144291 and 1155144300.

It is not an unprimeable number, because it can be changed into a prime (1155144323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37917 + ... + 61220.

It is an arithmetic number, because the mean of its divisors is an integer number (112422492).

Almost surely, 2^1155144324 is an apocalyptic number.

It is an amenable number.

1155144324 is an abundant number, since it is smaller than the sum of its proper divisors (1542995484).

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

1155144324 is a wasteful number, since it uses less digits than its factorization.

1155144324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100115 (or 100113 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 1155144324 is about 33987.4141999653. The cubic root of 1155144324 is about 1049.2494482055.

Adding to 1155144324 its reverse (4234415511), we get a palindrome (5389559835).

The spelling of 1155144324 in words is "one billion, one hundred fifty-five million, one hundred forty-four thousand, three hundred twenty-four".