144215135 has 8 divisors (see below), whose sum is σ = 174676176. Its totient is φ = 114293440.

The previous prime is 144215107. The next prime is 144215147. The reversal of 144215135 is 531512441.

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

It is a de Polignac number, because none of the positive numbers 2^k-144215135 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134246 + ... + 135315.

It is an arithmetic number, because the mean of its divisors is an integer number (21834522).

Almost surely, 2^144215135 is an apocalyptic number.

144215135 is a deficient number, since it is larger than the sum of its proper divisors (30461041).

144215135 is a wasteful number, since it uses less digits than its factorization.

144215135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269673.

The product of its digits is 2400, while the sum is 26.

The square root of 144215135 is about 12008.9606128091. The cubic root of 144215135 is about 524.4091735895.

Adding to 144215135 its reverse (531512441), we get a palindrome (675727576).

The spelling of 144215135 in words is "one hundred forty-four million, two hundred fifteen thousand, one hundred thirty-five".