144232431 has 12 divisors (see below), whose sum is σ = 223707672. Its totient is φ = 82418448.

The previous prime is 144232427. The next prime is 144232481. The reversal of 144232431 is 134232441.

It is not a de Polignac number, because 144232431 - 2² = 144232427 is a prime.

It is a super-2 number, since 2×144232431² = 41605988304339522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144232411) 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 11 ways as a sum of consecutive naturals, for example, 490440 + ... + 490733.

It is an arithmetic number, because the mean of its divisors is an integer number (18642306).

Almost surely, 2^144232431 is an apocalyptic number.

144232431 is a deficient number, since it is larger than the sum of its proper divisors (79475241).

144232431 is an equidigital number, since it uses as much as digits as its factorization.

144232431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981190 (or 981183 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 144232431 is about 12009.6807201524. The cubic root of 144232431 is about 524.4301372201.

Adding to 144232431 its reverse (134232441), we get a palindrome (278464872).

The spelling of 144232431 in words is "one hundred forty-four million, two hundred thirty-two thousand, four hundred thirty-one".