64281 has 8 divisors (see below), whose sum is σ = 97984. Its totient is φ = 36720.

The previous prime is 64279. The next prime is 64283. The reversal of 64281 is 18246.

It is an interprime number because it is at equal distance from previous prime (64279) and next prime (64283).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64281 - 2¹ = 64279 is a prime.

It is a super-2 number, since 2×64281² = 8264093922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 3061 = 64281 / (6 + 4 + 2 + 8 + 1).

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 64281.

It is not an unprimeable number, because it can be changed into a prime (64283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1510 + ... + 1551.

It is an arithmetic number, because the mean of its divisors is an integer number (12248).

2⁶⁴²⁸¹ is an apocalyptic number.

It is an amenable number.

64281 is a deficient number, since it is larger than the sum of its proper divisors (33703).

64281 is a wasteful number, since it uses less digits than its factorization.

64281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071.

The product of its digits is 384, while the sum is 21.

The square root of 64281 is about 253.5369795513. The cubic root of 64281 is about 40.0584561969.

The spelling of 64281 in words is "sixty-four thousand, two hundred eighty-one".