1152905 has 8 divisors (see below), whose sum is σ = 1489992. Its totient is φ = 851328.

The previous prime is 1152887. The next prime is 1152913. The reversal of 1152905 is 5092511.

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 1026169 = 356^2 + 1013^2 .

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 1152905 - 2⁶ = 1152841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8804 + ... + 8933.

It is an arithmetic number, because the mean of its divisors is an integer number (186249).

2^1152905 is an apocalyptic number.

It is an amenable number.

1152905 is a deficient number, since it is larger than the sum of its proper divisors (337087).

1152905 is a wasteful number, since it uses less digits than its factorization.

1152905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17755.

The product of its (nonzero) digits is 450, while the sum is 23.

The square root of 1152905 is about 1073.7341384160. The cubic root of 1152905 is about 104.8570996359.

The spelling of 1152905 in words is "one million, one hundred fifty-two thousand, nine hundred five".