64312 has 8 divisors (see below), whose sum is σ = 120600. Its totient is φ = 32152.

The previous prime is 64303. The next prime is 64319. The reversal of 64312 is 21346.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64319) by changing a digit.

64312 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4012 + ... + 4027.

It is an arithmetic number, because the mean of its divisors is an integer number (15075).

2⁶⁴³¹² is an apocalyptic number.

It is an amenable number.

64312 is a deficient number, since it is larger than the sum of its proper divisors (56288).

64312 is a wasteful number, since it uses less digits than its factorization.

64312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045 (or 8041 counting only the distinct ones).

The product of its digits is 144, while the sum is 16.

The square root of 64312 is about 253.5981072485. The cubic root of 64312 is about 40.0648946601.

Adding to 64312 its reverse (21346), we get a palindrome (85658).

The spelling of 64312 in words is "sixty-four thousand, three hundred twelve".