144915 has 8 divisors (see below), whose sum is σ = 231888. Its totient is φ = 77280.

The previous prime is 144899. The next prime is 144917. The reversal of 144915 is 519441.

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

It is not a de Polignac number, because 144915 - 2⁴ = 144899 is a prime.

It is a nialpdrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (144917) 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, 4816 + ... + 4845.

It is an arithmetic number, because the mean of its divisors is an integer number (28986).

2¹⁴⁴⁹¹⁵ is an apocalyptic number.

144915 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

144915 is a deficient number, since it is larger than the sum of its proper divisors (86973).

144915 is an equidigital number, since it uses as much as digits as its factorization.

144915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9669.

The product of its digits is 720, while the sum is 24.

The square root of 144915 is about 380.6770284638. The cubic root of 144915 is about 52.5256110869.

The spelling of 144915 in words is "one hundred forty-four thousand, nine hundred fifteen".