144441157 has 4 divisors (see below), whose sum is σ = 165075616. Its totient is φ = 123806700.

The previous prime is 144441149. The next prime is 144441169. The reversal of 144441157 is 751144441.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 144441157 - 2³ = 144441149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144442157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10317219 + ... + 10317232.

It is an arithmetic number, because the mean of its divisors is an integer number (41268904).

Almost surely, 2^144441157 is an apocalyptic number.

It is an amenable number.

144441157 is a deficient number, since it is larger than the sum of its proper divisors (20634459).

144441157 is an equidigital number, since it uses as much as digits as its factorization.

144441157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20634458.

The product of its digits is 8960, while the sum is 31.

The square root of 144441157 is about 12018.3674848126. The cubic root of 144441157 is about 524.6829916897.

Adding to 144441157 its reverse (751144441), we get a palindrome (895585598).

The spelling of 144441157 in words is "one hundred forty-four million, four hundred forty-one thousand, one hundred fifty-seven".