42144233 has 2 divisors, whose sum is σ = 42144234. Its totient is φ = 42144232.

The previous prime is 42144227. The next prime is 42144247. The reversal of 42144233 is 33244124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36517849 + 5626384 = 6043^2 + 2372^2 .

It is a cyclic number.

It is not a de Polignac number, because 42144233 - 2⁴ = 42144217 is a prime.

It is a super-3 number, since 3×42144233³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 42144199 and 42144208.

It is not a weakly prime, because it can be changed into another prime (42144253) 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, 21072116 + 21072117.

It is an arithmetic number, because the mean of its divisors is an integer number (21072117).

Almost surely, 2^42144233 is an apocalyptic number.

It is an amenable number.

42144233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42144233 is an equidigital number, since it uses as much as digits as its factorization.

42144233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 42144233 is about 6491.8589787518. The cubic root of 42144233 is about 348.0001128506. Note that the first 3 decimals are identical.

Adding to 42144233 its reverse (33244124), we get a palindrome (75388357).

The spelling of 42144233 in words is "forty-two million, one hundred forty-four thousand, two hundred thirty-three".