65145 has 16 divisors (see below), whose sum is σ = 107712. Its totient is φ = 33600.

The previous prime is 65141. The next prime is 65147. The reversal of 65145 is 54156.

It is a happy number.

It is not a de Polignac number, because 65145 - 2² = 65141 is a prime.

65145 is a lucky number.

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

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 595 + ... + 695.

It is an arithmetic number, because the mean of its divisors is an integer number (6732).

2⁶⁵¹⁴⁵ is an apocalyptic number.

It is an amenable number.

65145 is a deficient number, since it is larger than the sum of its proper divisors (42567).

65145 is a wasteful number, since it uses less digits than its factorization.

65145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152.

The product of its digits is 600, while the sum is 21.

The square root of 65145 is about 255.2351856622. The cubic root of 65145 is about 40.2371330861.

It can be divided in two parts, 651 and 45, that added together give a palindrome (696).

The spelling of 65145 in words is "sixty-five thousand, one hundred forty-five".