42162233 has 2 divisors, whose sum is σ = 42162234. Its totient is φ = 42162232.

The previous prime is 42162217. The next prime is 42162247. The reversal of 42162233 is 33226124.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25775929 + 16386304 = 5077^2 + 4048^2 .

It is a cyclic number.

It is not a de Polignac number, because 42162233 - 2⁴ = 42162217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42162199 and 42162208.

It is not a weakly prime, because it can be changed into another prime (42162283) 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, 21081116 + 21081117.

It is an arithmetic number, because the mean of its divisors is an integer number (21081117).

Almost surely, 2^42162233 is an apocalyptic number.

It is an amenable number.

42162233 is a deficient number, since it is larger than the sum of its proper divisors (1).

42162233 is an equidigital number, since it uses as much as digits as its factorization.

42162233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 23.

The square root of 42162233 is about 6493.2451824954. The cubic root of 42162233 is about 348.0496499601.

Adding to 42162233 its reverse (33226124), we get a palindrome (75388357).

The spelling of 42162233 in words is "forty-two million, one hundred sixty-two thousand, two hundred thirty-three".