65144 has 16 divisors (see below), whose sum is σ = 129600. Its totient is φ = 30592.

The previous prime is 65141. The next prime is 65147. The reversal of 65144 is 44156.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (65141) and next prime (65147).

It is a plaindrome in base 15.

It is a zygodrome in base 2.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 65144.

It is not an unprimeable number, because it can be changed into a prime (65141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104 + ... + 375.

It is an arithmetic number, because the mean of its divisors is an integer number (8100).

2⁶⁵¹⁴⁴ is an apocalyptic number.

It is an amenable number.

65144 is a deficient number, since it is larger than the sum of its proper divisors (64456).

65144 is a wasteful number, since it uses less digits than its factorization.

65144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502 (or 498 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 65144 is about 255.2332266771. The cubic root of 65144 is about 40.2369272001.

The spelling of 65144 in words is "sixty-five thousand, one hundred forty-four".