845136 has 30 divisors (see below), whose sum is σ = 2365610. Its totient is φ = 281664.

The previous prime is 845129. The next prime is 845137. The reversal of 845136 is 631548.

It can be written as a sum of positive squares in only one way, i.e., 553536 + 291600 = 744^2 + 540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845137) by changing a digit.

845136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2791 + ... + 3078.

2⁸⁴⁵¹³⁶ is an apocalyptic number.

It is an amenable number.

845136 is an abundant number, since it is smaller than the sum of its proper divisors (1520474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

845136 is a wasteful number, since it uses less digits than its factorization.

845136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883 (or 5874 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 845136 is about 919.3127868142. The cubic root of 845136 is about 94.5457911948.

The spelling of 845136 in words is "eight hundred forty-five thousand, one hundred thirty-six".