145005 has 16 divisors (see below), whose sum is σ = 265344. Its totient is φ = 66240.

The previous prime is 144983. The next prime is 145007. The reversal of 145005 is 500541.

It is not a de Polignac number, because 145005 - 2⁵ = 144973 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145007) 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, 586 + ... + 795.

It is an arithmetic number, because the mean of its divisors is an integer number (16584).

2¹⁴⁵⁰⁰⁵ is an apocalyptic number.

145005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

145005 is a deficient number, since it is larger than the sum of its proper divisors (120339).

145005 is a wasteful number, since it uses less digits than its factorization.

145005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1396.

The product of its (nonzero) digits is 100, while the sum is 15.

The square root of 145005 is about 380.7952205582. The cubic root of 145005 is about 52.5364825787.

Adding to 145005 its reverse (500541), we get a palindrome (645546).

The spelling of 145005 in words is "one hundred forty-five thousand, five".