145255 has 16 divisors (see below), whose sum is σ = 201600. Its totient is φ = 99360.

The previous prime is 145253. The next prime is 145259. The reversal of 145255 is 552541.

It is not a de Polignac number, because 145255 - 2¹ = 145253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145253) 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 15 ways as a sum of consecutive naturals, for example, 976 + ... + 1114.

It is an arithmetic number, because the mean of its divisors is an integer number (12600).

2¹⁴⁵²⁵⁵ is an apocalyptic number.

145255 is a deficient number, since it is larger than the sum of its proper divisors (56345).

145255 is a wasteful number, since it uses less digits than its factorization.

145255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174.

The product of its digits is 1000, while the sum is 22.

The square root of 145255 is about 381.1233396159. The cubic root of 145255 is about 52.5666575836.

Adding to 145255 its reverse (552541), we get a palindrome (697796).

It can be divided in two parts, 145 and 255, that added together give a square (400 = 20²).

The spelling of 145255 in words is "one hundred forty-five thousand, two hundred fifty-five".