1152999 has 6 divisors (see below), whose sum is σ = 1665456. Its totient is φ = 768660.

The previous prime is 1152997. The next prime is 1153001. The reversal of 1152999 is 9992511.

It is an interprime number because it is at equal distance from previous prime (1152997) and next prime (1153001).

It is not a de Polignac number, because 1152999 - 2¹ = 1152997 is a prime.

1152999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152997) 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 in 5 ways as a sum of consecutive naturals, for example, 64047 + ... + 64064.

It is an arithmetic number, because the mean of its divisors is an integer number (277576).

2^1152999 is an apocalyptic number.

1152999 is a deficient number, since it is larger than the sum of its proper divisors (512457).

1152999 is a wasteful number, since it uses less digits than its factorization.

1152999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128117 (or 128114 counting only the distinct ones).

The product of its digits is 7290, while the sum is 36.

The square root of 1152999 is about 1073.7779099982. Note that the first 3 decimals coincide. The cubic root of 1152999 is about 104.8599493357.

It can be divided in two parts, 11529 and 99, that added together give a triangular number (11628 = T₁₅₂).

The spelling of 1152999 in words is "one million, one hundred fifty-two thousand, nine hundred ninety-nine".