836145 has 24 divisors (see below), whose sum is σ = 1535976. Its totient is φ = 419328.

The previous prime is 836137. The next prime is 836149. The reversal of 836145 is 541638.

It can be written as a sum of positive squares in 4 ways, for example, as 431649 + 404496 = 657^2 + 636^2 .

It is not a de Polignac number, because 836145 - 2³ = 836137 is a prime.

It is a super-2 number, since 2×836145² = 1398276922050, which contains 22 as substring.

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

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (836149) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219 + ... + 1311.

It is an arithmetic number, because the mean of its divisors is an integer number (63999).

2⁸³⁶¹⁴⁵ is an apocalyptic number.

836145 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

836145 is a deficient number, since it is larger than the sum of its proper divisors (699831).

836145 is a wasteful number, since it uses less digits than its factorization.

836145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121 (or 1118 counting only the distinct ones).

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

The square root of 836145 is about 914.4096456184. The cubic root of 836145 is about 94.2093192668.

The spelling of 836145 in words is "eight hundred thirty-six thousand, one hundred forty-five".