144221051 has 24 divisors (see below), whose sum is σ = 162468864. Its totient is φ = 127876320.

The previous prime is 144221041. The next prime is 144221059. The reversal of 144221051 is 150122441.

It is a happy number.

144221051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-144221051 is a prime.

It is a Duffinian number.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 532046 + ... + 532316.

It is an arithmetic number, because the mean of its divisors is an integer number (6769536).

Almost surely, 2^144221051 is an apocalyptic number.

144221051 is a deficient number, since it is larger than the sum of its proper divisors (18247813).

144221051 is a wasteful number, since it uses less digits than its factorization.

144221051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 398 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 144221051 is about 12009.2069263545. The cubic root of 144221051 is about 524.4163442706.

Adding to 144221051 its reverse (150122441), we get a palindrome (294343492).

The spelling of 144221051 in words is "one hundred forty-four million, two hundred twenty-one thousand, fifty-one".