144221995 has 8 divisors (see below), whose sum is σ = 175903920. Its totient is φ = 113485920.

The previous prime is 144221981. The next prime is 144222011. The reversal of 144221995 is 599122441.

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

It is not a de Polignac number, because 144221995 - 2⁵ = 144221963 is a prime.

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, 236125 + ... + 236734.

It is an arithmetic number, because the mean of its divisors is an integer number (21987990).

Almost surely, 2^144221995 is an apocalyptic number.

144221995 is a deficient number, since it is larger than the sum of its proper divisors (31681925).

144221995 is an equidigital number, since it uses as much as digits as its factorization.

144221995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472925.

The product of its digits is 25920, while the sum is 37.

The square root of 144221995 is about 12009.2462294684. The cubic root of 144221995 is about 524.4174884585.

The spelling of 144221995 in words is "one hundred forty-four million, two hundred twenty-one thousand, nine hundred ninety-five".