654312 has 32 divisors (see below), whose sum is σ = 1656000. Its totient is φ = 215424.

The previous prime is 654307. The next prime is 654323. The reversal of 654312 is 213456.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 654312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3189 + ... + 3387.

It is an arithmetic number, because the mean of its divisors is an integer number (51750).

2⁶⁵⁴³¹² is an apocalyptic number.

It is an amenable number.

654312 is an abundant number, since it is smaller than the sum of its proper divisors (1001688).

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

654312 is a wasteful number, since it uses less digits than its factorization.

654312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345 (or 341 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 654312 is about 808.8955433182. The cubic root of 654312 is about 86.8150384160.

Adding to 654312 its reverse (213456), we get a palindrome (867768).

It can be divided in two parts, 6543 and 12, that added together give a triangular number (6555 = T₁₁₄).

The spelling of 654312 in words is "six hundred fifty-four thousand, three hundred twelve".