1155248604 has 72 divisors (see below), whose sum is σ = 3025556352. Its totient is φ = 371283840.

The previous prime is 1155248581. The next prime is 1155248629. The reversal of 1155248604 is 4068425511.

It is a happy number.

1155248604 is a `hidden beast` number, since 1 + 1 + 5 + 5 + 2 + 48 + 604 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 325222 + ... + 328754.

It is an arithmetic number, because the mean of its divisors is an integer number (42021616).

Almost surely, 2^1155248604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155248604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1512778176).

1155248604 is an abundant number, since it is smaller than the sum of its proper divisors (1870307748).

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

1155248604 is a wasteful number, since it uses less digits than its factorization.

1155248604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3867 (or 3862 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 1155248604 is about 33988.9482626338. The cubic root of 1155248604 is about 1049.2810207221.

The spelling of 1155248604 in words is "one billion, one hundred fifty-five million, two hundred forty-eight thousand, six hundred four".