231802 has 4 divisors (see below), whose sum is σ = 347706. Its totient is φ = 115900.

The previous prime is 231799. The next prime is 231809. The reversal of 231802 is 208132.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 231361 + 441 = 481^2 + 21^2 .

It is not an unprimeable number, because it can be changed into a prime (231809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57949 + ... + 57952.

2²³¹⁸⁰² is an apocalyptic number.

231802 is a deficient number, since it is larger than the sum of its proper divisors (115904).

231802 is a wasteful number, since it uses less digits than its factorization.

231802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115903.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 231802 is about 481.4582017164. The cubic root of 231802 is about 61.4288511152.

Adding to 231802 its reverse (208132), we get a palindrome (439934).

It can be divided in two parts, 23180 and 2, that multiplied together give a triangular number (46360 = T₃₀₄).

The spelling of 231802 in words is "two hundred thirty-one thousand, eight hundred two".