1155004 has 6 divisors (see below), whose sum is σ = 2021264. Its totient is φ = 577500.

The previous prime is 1155001. The next prime is 1155017. The reversal of 1155004 is 4005511.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144372 + ... + 144379.

2^1155004 is an apocalyptic number.

It is an amenable number.

1155004 is a deficient number, since it is larger than the sum of its proper divisors (866260).

1155004 is a wasteful number, since it uses less digits than its factorization.

1155004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288755 (or 288753 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1155004 is about 1074.7111239770. The cubic root of 1155004 is about 104.9206959765.

The spelling of 1155004 in words is "one million, one hundred fifty-five thousand, four".