144242433 has 72 divisors (see below), whose sum is σ = 244576800. Its totient is φ = 81381888.

The previous prime is 144242431. The next prime is 144242447. The reversal of 144242433 is 334242441.

It is a happy number.

It is not a de Polignac number, because 144242433 - 2¹ = 144242431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144242397 and 144242406.

It is not an unprimeable number, because it can be changed into a prime (144242431) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2444758 + ... + 2444816.

It is an arithmetic number, because the mean of its divisors is an integer number (3396900).

Almost surely, 2^144242433 is an apocalyptic number.

It is an amenable number.

144242433 is a deficient number, since it is larger than the sum of its proper divisors (100334367).

144242433 is a wasteful number, since it uses less digits than its factorization.

144242433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159 (or 127 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 144242433 is about 12010.0971270011. The cubic root of 144242433 is about 524.4422593875.

Adding to 144242433 its reverse (334242441), we get a palindrome (478484874).

The spelling of 144242433 in words is "one hundred forty-four million, two hundred forty-two thousand, four hundred thirty-three".