1155504030 has 16 divisors (see below), whose sum is σ = 2773209744. Its totient is φ = 308134400.

The previous prime is 1155504011. The next prime is 1155504037. The reversal of 1155504030 is 304055511.

1155504030 = 15200² + 15201² + ... + 15204².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155504037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19258371 + ... + 19258430.

It is an arithmetic number, because the mean of its divisors is an integer number (173325609).

Almost surely, 2^1155504030 is an apocalyptic number.

1155504030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155504030 is an abundant number, since it is smaller than the sum of its proper divisors (1617705714).

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

1155504030 is a wasteful number, since it uses less digits than its factorization.

1155504030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38516811.

The product of its (nonzero) digits is 1500, while the sum is 24.

The square root of 1155504030 is about 33992.7055410422. The cubic root of 1155504030 is about 1049.3583471962.

Adding to 1155504030 its reverse (304055511), we get a palindrome (1459559541).

The spelling of 1155504030 in words is "one billion, one hundred fifty-five million, five hundred four thousand, thirty".