144212135 has 4 divisors (see below), whose sum is σ = 173054568. Its totient is φ = 115369704.

The previous prime is 144212119. The next prime is 144212141. The reversal of 144212135 is 531212441.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 144212135 - 2⁴ = 144212119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144212135.

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, 14421209 + ... + 14421218.

It is an arithmetic number, because the mean of its divisors is an integer number (43263642).

Almost surely, 2^144212135 is an apocalyptic number.

144212135 is a deficient number, since it is larger than the sum of its proper divisors (28842433).

144212135 is an equidigital number, since it uses as much as digits as its factorization.

144212135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28842432.

The product of its digits is 960, while the sum is 23.

The square root of 144212135 is about 12008.8357054296. The cubic root of 144212135 is about 524.4055372665.

Adding to 144212135 its reverse (531212441), we get a palindrome (675424576).

The spelling of 144212135 in words is "one hundred forty-four million, two hundred twelve thousand, one hundred thirty-five".