255145 has 8 divisors (see below), whose sum is σ = 334080. Its totient is φ = 185520.

The previous prime is 255137. The next prime is 255149. The reversal of 255145 is 541552.

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

It is not a de Polignac number, because 255145 - 2³ = 255137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255149) 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, 2265 + ... + 2374.

It is an arithmetic number, because the mean of its divisors is an integer number (41760).

2²⁵⁵¹⁴⁵ is an apocalyptic number.

It is an amenable number.

255145 is a deficient number, since it is larger than the sum of its proper divisors (78935).

255145 is a wasteful number, since it uses less digits than its factorization.

255145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655.

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

The square root of 255145 is about 505.1187979080. The cubic root of 255145 is about 63.4252742826.

Adding to 255145 its reverse (541552), we get a palindrome (796697).

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

The spelling of 255145 in words is "two hundred fifty-five thousand, one hundred forty-five".