1152815 has 4 divisors (see below), whose sum is σ = 1383384. Its totient is φ = 922248.

The previous prime is 1152799. The next prime is 1152841. The reversal of 1152815 is 5182511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5182511 = 167 ⋅31033.

It is a cyclic number.

It is not a de Polignac number, because 1152815 - 2⁴ = 1152799 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115277 + ... + 115286.

It is an arithmetic number, because the mean of its divisors is an integer number (345846).

2^1152815 is an apocalyptic number.

1152815 is a deficient number, since it is larger than the sum of its proper divisors (230569).

1152815 is an equidigital number, since it uses as much as digits as its factorization.

1152815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230568.

The product of its digits is 400, while the sum is 23.

The square root of 1152815 is about 1073.6922277822. The cubic root of 1152815 is about 104.8543710547.

The spelling of 1152815 in words is "one million, one hundred fifty-two thousand, eight hundred fifteen".