845115 has 16 divisors (see below), whose sum is σ = 1367808. Its totient is φ = 445536.

The previous prime is 845111. The next prime is 845129. The reversal of 845115 is 511548.

It is not a de Polignac number, because 845115 - 2² = 845111 is a prime.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (845111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1272 + ... + 1818.

It is an arithmetic number, because the mean of its divisors is an integer number (85488).

2⁸⁴⁵¹¹⁵ is an apocalyptic number.

845115 is a deficient number, since it is larger than the sum of its proper divisors (522693).

845115 is a wasteful number, since it uses less digits than its factorization.

845115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658.

The product of its digits is 800, while the sum is 24.

The square root of 845115 is about 919.3013651681. The cubic root of 845115 is about 94.5450080948.

The spelling of 845115 in words is "eight hundred forty-five thousand, one hundred fifteen".