144305031 has 16 divisors (see below), whose sum is σ = 213893120. Its totient is φ = 85937760.

The previous prime is 144305023. The next prime is 144305047. The reversal of 144305031 is 130503441.

It is not a de Polignac number, because 144305031 - 2³ = 144305023 is a prime.

It is a super-2 number, since 2×144305031² = 41647883943821922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144304989 and 144305007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144305011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58471 + ... + 60888.

It is an arithmetic number, because the mean of its divisors is an integer number (13368320).

Almost surely, 2^144305031 is an apocalyptic number.

144305031 is a deficient number, since it is larger than the sum of its proper divisors (69588089).

144305031 is a wasteful number, since it uses less digits than its factorization.

144305031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119406.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 144305031 is about 12012.7029015122. The cubic root of 144305031 is about 524.5181138315.

Adding to 144305031 its reverse (130503441), we get a palindrome (274808472).

The spelling of 144305031 in words is "one hundred forty-four million, three hundred five thousand, thirty-one".