802131 has 16 divisors (see below), whose sum is σ = 1182720. Its totient is φ = 479520.

The previous prime is 802129. The next prime is 802133. The reversal of 802131 is 131208.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (802129) and next prime (802133).

It is not a de Polignac number, because 802131 - 2¹ = 802129 is a prime.

It is a super-2 number, since 2×802131² = 1286828282322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 802131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (802133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3486 + ... + 3708.

It is an arithmetic number, because the mean of its divisors is an integer number (73920).

2⁸⁰²¹³¹ is an apocalyptic number.

802131 is a deficient number, since it is larger than the sum of its proper divisors (380589).

802131 is a wasteful number, since it uses less digits than its factorization.

802131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 802131 is about 895.6176639616. The cubic root of 802131 is about 92.9141304739.

Multiplying 802131 by its sum of digits (15), we get a triangular number (12031965 = T₄₉₀₅).

Adding to 802131 its reverse (131208), we get a palindrome (933339).

It can be divided in two parts, 80 and 2131, that added together give a triangular number (2211 = T₆₆).

The spelling of 802131 in words is "eight hundred two thousand, one hundred thirty-one".