144132215 has 4 divisors (see below), whose sum is σ = 172958664. Its totient is φ = 115305768.

The previous prime is 144132211. The next prime is 144132251. The reversal of 144132215 is 512231441.

144132215 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 144132215 - 2² = 144132211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144132211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14413217 + ... + 14413226.

It is an arithmetic number, because the mean of its divisors is an integer number (43239666).

Almost surely, 2^144132215 is an apocalyptic number.

144132215 is a deficient number, since it is larger than the sum of its proper divisors (28826449).

144132215 is an equidigital number, since it uses as much as digits as its factorization.

144132215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28826448.

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

The square root of 144132215 is about 12005.5076943876. The cubic root of 144132215 is about 524.3086470499.

Adding to 144132215 its reverse (512231441), we get a palindrome (656363656).

The spelling of 144132215 in words is "one hundred forty-four million, one hundred thirty-two thousand, two hundred fifteen".