1152005 has 8 divisors (see below), whose sum is σ = 1463832. Its totient is φ = 867328.

The previous prime is 1151999. The next prime is 1152023. The reversal of 1152005 is 5002511.

It can be written as a sum of positive squares in 4 ways, for example, as 388129 + 763876 = 623^2 + 874^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1152005 - 2¹⁶ = 1086469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6692 + ... + 6861.

It is an arithmetic number, because the mean of its divisors is an integer number (182979).

2^1152005 is an apocalyptic number.

It is an amenable number.

1152005 is a deficient number, since it is larger than the sum of its proper divisors (311827).

1152005 is a wasteful number, since it uses less digits than its factorization.

1152005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13575.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 1152005 is about 1073.3149584348. The cubic root of 1152005 is about 104.8298074314.

Adding to 1152005 its reverse (5002511), we get a palindrome (6154516).

The spelling of 1152005 in words is "one million, one hundred fifty-two thousand, five".