144342431 has 4 divisors (see below), whose sum is σ = 144454512. Its totient is φ = 144230352.

The previous prime is 144342403. The next prime is 144342437. The reversal of 144342431 is 134243441.

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

It is a cyclic number.

It is not a de Polignac number, because 144342431 - 2¹⁴ = 144326047 is a prime.

It is a super-2 number, since 2×144342431² = 41669474773979522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 144342431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144342437) 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, 54086 + ... + 56691.

It is an arithmetic number, because the mean of its divisors is an integer number (36113628).

Almost surely, 2^144342431 is an apocalyptic number.

144342431 is a deficient number, since it is larger than the sum of its proper divisors (112081).

144342431 is a wasteful number, since it uses less digits than its factorization.

144342431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112080.

The product of its digits is 4608, while the sum is 26.

The square root of 144342431 is about 12014.2594861273. The cubic root of 144342431 is about 524.5634236007.

Adding to 144342431 its reverse (134243441), we get a palindrome (278585872).

The spelling of 144342431 in words is "one hundred forty-four million, three hundred forty-two thousand, four hundred thirty-one".