144221099 has 4 divisors (see below), whose sum is σ = 157332120. Its totient is φ = 131110080.

The previous prime is 144221069. The next prime is 144221101. The reversal of 144221099 is 990122441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144221099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144221059) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6555494 + ... + 6555515.

It is an arithmetic number, because the mean of its divisors is an integer number (39333030).

Almost surely, 2^144221099 is an apocalyptic number.

144221099 is a deficient number, since it is larger than the sum of its proper divisors (13111021).

144221099 is a wasteful number, since it uses less digits than its factorization.

144221099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13111020.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 144221099 is about 12009.2089248210. The cubic root of 144221099 is about 524.4164024498.

The spelling of 144221099 in words is "one hundred forty-four million, two hundred twenty-one thousand, ninety-nine".