144213331 has 2 divisors, whose sum is σ = 144213332. Its totient is φ = 144213330.

The previous prime is 144213323. The next prime is 144213337. The reversal of 144213331 is 133312441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144213331 - 2³ = 144213323 is a prime.

It is a super-2 number, since 2×144213331² = 41594969676231122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (144213337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72106665 + 72106666.

It is an arithmetic number, because the mean of its divisors is an integer number (72106666).

Almost surely, 2^144213331 is an apocalyptic number.

144213331 is a deficient number, since it is larger than the sum of its proper divisors (1).

144213331 is an equidigital number, since it uses as much as digits as its factorization.

144213331 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 144213331 is about 12008.8855019939. The cubic root of 144213331 is about 524.4069869533.

Adding to 144213331 its reverse (133312441), we get a palindrome (277525772).

The spelling of 144213331 in words is "one hundred forty-four million, two hundred thirteen thousand, three hundred thirty-one".