878145 has 8 divisors (see below), whose sum is σ = 1405056. Its totient is φ = 468336.

The previous prime is 878131. The next prime is 878147. The reversal of 878145 is 541878.

It is a happy number.

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

It is not a de Polignac number, because 878145 - 2⁵ = 878113 is a prime.

It is a super-2 number, since 2×878145² = 1542277282050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

878145 is a lucky number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 878145.

It is not an unprimeable number, because it can be changed into a prime (878147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29257 + ... + 29286.

It is an arithmetic number, because the mean of its divisors is an integer number (175632).

2⁸⁷⁸¹⁴⁵ is an apocalyptic number.

It is an amenable number.

878145 is a deficient number, since it is larger than the sum of its proper divisors (526911).

878145 is a wasteful number, since it uses less digits than its factorization.

878145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58551.

The product of its digits is 8960, while the sum is 33.

The square root of 878145 is about 937.0939120494. The cubic root of 878145 is about 95.7610158050.

The spelling of 878145 in words is "eight hundred seventy-eight thousand, one hundred forty-five".