813162 has 32 divisors (see below), whose sum is σ = 1958400. Its totient is φ = 219888.

The previous prime is 813157. The next prime is 813167. The reversal of 813162 is 261318.

It is an interprime number because it is at equal distance from previous prime (813157) and next prime (813167).

It is a super-2 number, since 2×813162² = 1322464876488, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (813167) 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, 289 + ... + 1307.

It is an arithmetic number, because the mean of its divisors is an integer number (61200).

2⁸¹³¹⁶² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 813162, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (979200).

813162 is an abundant number, since it is smaller than the sum of its proper divisors (1145238).

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

813162 is a wasteful number, since it uses less digits than its factorization.

813162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050.

The product of its digits is 288, while the sum is 21.

The square root of 813162 is about 901.7549556282. The cubic root of 813162 is about 93.3381148344.

Adding to 813162 its product of digits (288), we get a triangular number (813450 = T₁₂₇₅).

It can be divided in two parts, 81316 and 2, that added together give a palindrome (81318).

The spelling of 813162 in words is "eight hundred thirteen thousand, one hundred sixty-two".