42213959 has 2 divisors, whose sum is σ = 42213960. Its totient is φ = 42213958.

The previous prime is 42213931. The next prime is 42213979. The reversal of 42213959 is 95931224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42213959 - 2¹² = 42209863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42213979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21106979 + 21106980.

It is an arithmetic number, because the mean of its divisors is an integer number (21106980).

Almost surely, 2^42213959 is an apocalyptic number.

42213959 is a deficient number, since it is larger than the sum of its proper divisors (1).

42213959 is an equidigital number, since it uses as much as digits as its factorization.

42213959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19440, while the sum is 35.

The square root of 42213959 is about 6497.2270238926. The cubic root of 42213959 is about 348.1919246739.

The spelling of 42213959 in words is "forty-two million, two hundred thirteen thousand, nine hundred fifty-nine".