144312331 has 2 divisors, whose sum is σ = 144312332. Its totient is φ = 144312330.

The previous prime is 144312319. The next prime is 144312367. The reversal of 144312331 is 133213441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144312331 - 2¹⁵ = 144279563 is a prime.

It is a super-2 number, since 2×144312331² = 41652097757307122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144312431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72156165 + 72156166.

It is an arithmetic number, because the mean of its divisors is an integer number (72156166).

Almost surely, 2^144312331 is an apocalyptic number.

144312331 is a deficient number, since it is larger than the sum of its proper divisors (1).

144312331 is an equidigital number, since it uses as much as digits as its factorization.

144312331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 22.

The square root of 144312331 is about 12013.0067426935. The cubic root of 144312331 is about 524.5269583318.

Adding to 144312331 its reverse (133213441), we get a palindrome (277525772).

The spelling of 144312331 in words is "one hundred forty-four million, three hundred twelve thousand, three hundred thirty-one".