1155212304 has 40 divisors (see below), whose sum is σ = 2985663072. Its totient is φ = 384894720.

The previous prime is 1155212297. The next prime is 1155212321. The reversal of 1155212304 is 4032125511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140532 + ... + 148524.

Almost surely, 2^1155212304 is an apocalyptic number.

It is an amenable number.

1155212304 is an abundant number, since it is smaller than the sum of its proper divisors (1830450768).

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

1155212304 is a wasteful number, since it uses less digits than its factorization.

1155212304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11015 (or 11009 counting only the distinct ones).

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

The square root of 1155212304 is about 33988.4142613332. The cubic root of 1155212304 is about 1049.2700305047.

Adding to 1155212304 its reverse (4032125511), we get a palindrome (5187337815).

The spelling of 1155212304 in words is "one billion, one hundred fifty-five million, two hundred twelve thousand, three hundred four".