144226541 has 4 divisors (see below), whose sum is σ = 149199900. Its totient is φ = 139253184.

The previous prime is 144226519. The next prime is 144226543. The reversal of 144226541 is 145622441.

144226541 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 can be written as a sum of positive squares in 2 ways, for example, as 91968100 + 52258441 = 9590^2 + 7229^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144226541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 4973329 = 144226541 / (1 + 4 + 4 + 2 + 2 + 6 + 5 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144226543) 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, 2486636 + ... + 2486693.

It is an arithmetic number, because the mean of its divisors is an integer number (37299975).

Almost surely, 2^144226541 is an apocalyptic number.

It is an amenable number.

144226541 is a deficient number, since it is larger than the sum of its proper divisors (4973359).

144226541 is an equidigital number, since it uses as much as digits as its factorization.

144226541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4973358.

The product of its digits is 7680, while the sum is 29.

The square root of 144226541 is about 12009.4354988068. The cubic root of 144226541 is about 524.4229984291.

Adding to 144226541 its reverse (145622441), we get a palindrome (289848982).

The spelling of 144226541 in words is "one hundred forty-four million, two hundred twenty-six thousand, five hundred forty-one".