42162443 has 2 divisors, whose sum is σ = 42162444. Its totient is φ = 42162442.

The previous prime is 42162413. The next prime is 42162467. The reversal of 42162443 is 34426124.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42162443 is a prime.

It is not a weakly prime, because it can be changed into another prime (42162413) 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, 21081221 + 21081222.

It is an arithmetic number, because the mean of its divisors is an integer number (21081222).

Almost surely, 2^42162443 is an apocalyptic number.

42162443 is a deficient number, since it is larger than the sum of its proper divisors (1).

42162443 is an equidigital number, since it uses as much as digits as its factorization.

42162443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4608, while the sum is 26.

The square root of 42162443 is about 6493.2613531260. The cubic root of 42162443 is about 348.0502278098.

Adding to 42162443 its reverse (34426124), we get a palindrome (76588567).

The spelling of 42162443 in words is "forty-two million, one hundred sixty-two thousand, four hundred forty-three".