869145 has 8 divisors (see below), whose sum is σ = 1390656. Its totient is φ = 463536.

The previous prime is 869137. The next prime is 869153. The reversal of 869145 is 541968.

It is an interprime number because it is at equal distance from previous prime (869137) and next prime (869153).

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

It is not a de Polignac number, because 869145 - 2³ = 869137 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869145.

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, 28957 + ... + 28986.

It is an arithmetic number, because the mean of its divisors is an integer number (173832).

2⁸⁶⁹¹⁴⁵ is an apocalyptic number.

It is an amenable number.

869145 is a deficient number, since it is larger than the sum of its proper divisors (521511).

869145 is a wasteful number, since it uses less digits than its factorization.

869145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57951.

The product of its digits is 8640, while the sum is 33.

The square root of 869145 is about 932.2794645384. The cubic root of 869145 is about 95.4327441450.

The spelling of 869145 in words is "eight hundred sixty-nine thousand, one hundred forty-five".