144215 has 4 divisors (see below), whose sum is σ = 173064. Its totient is φ = 115368.

The previous prime is 144203. The next prime is 144223. The reversal of 144215 is 512441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 512441 = 47 ⋅10903.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144215 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 144193 and 144202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14417 + ... + 14426.

It is an arithmetic number, because the mean of its divisors is an integer number (43266).

2¹⁴⁴²¹⁵ is an apocalyptic number.

144215 is a deficient number, since it is larger than the sum of its proper divisors (28849).

144215 is an equidigital number, since it uses as much as digits as its factorization.

144215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28848.

The product of its digits is 160, while the sum is 17.

The square root of 144215 is about 379.7565009318. The cubic root of 144215 is about 52.4409009956.

Adding to 144215 its reverse (512441), we get a palindrome (656656).

The spelling of 144215 in words is "one hundred forty-four thousand, two hundred fifteen".