1155144030 has 32 divisors (see below), whose sum is σ = 2774974464. Its totient is φ = 307746336.

The previous prime is 1155143993. The next prime is 1155144031. The reversal of 1155144030 is 304415511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155144031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14899 + ... + 50321.

It is an arithmetic number, because the mean of its divisors is an integer number (86717952).

Almost surely, 2^1155144030 is an apocalyptic number.

1155144030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155144030 is an abundant number, since it is smaller than the sum of its proper divisors (1619830434).

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

1155144030 is a wasteful number, since it uses less digits than its factorization.

1155144030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36520.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1155144030 is about 33987.4098748345. The cubic root of 1155144030 is about 1049.2493591894.

Adding to 1155144030 its reverse (304415511), we get a palindrome (1459559541).

The spelling of 1155144030 in words is "one billion, one hundred fifty-five million, one hundred forty-four thousand, thirty".