351812 has 12 divisors (see below), whose sum is σ = 619836. Its totient is φ = 174720.

The previous prime is 351811. The next prime is 351829. The reversal of 351812 is 218153.

It can be written as a sum of positive squares in 2 ways, for example, as 87616 + 264196 = 296^2 + 514^2 .

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351811) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968 + ... + 1280.

It is an arithmetic number, because the mean of its divisors is an integer number (51653).

2³⁵¹⁸¹² is an apocalyptic number.

It is an amenable number.

351812 is a deficient number, since it is larger than the sum of its proper divisors (268024).

351812 is a wasteful number, since it uses less digits than its factorization.

351812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598 (or 596 counting only the distinct ones).

The product of its digits is 240, while the sum is 20.

The square root of 351812 is about 593.1374208394. The cubic root of 351812 is about 70.5943942883.

Adding to 351812 its reverse (218153), we get a palindrome (569965).

It can be divided in two parts, 3 and 51812, that added together give a palindrome (51815).

The spelling of 351812 in words is "three hundred fifty-one thousand, eight hundred twelve".