42335213 has 2 divisors, whose sum is σ = 42335214. Its totient is φ = 42335212.

The previous prime is 42335197. The next prime is 42335233. The reversal of 42335213 is 31253324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40729924 + 1605289 = 6382^2 + 1267^2 .

It is a cyclic number.

It is not a de Polignac number, because 42335213 - 2⁴ = 42335197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42335233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21167606 + 21167607.

It is an arithmetic number, because the mean of its divisors is an integer number (21167607).

Almost surely, 2^42335213 is an apocalyptic number.

It is an amenable number.

42335213 is a deficient number, since it is larger than the sum of its proper divisors (1).

42335213 is an equidigital number, since it uses as much as digits as its factorization.

42335213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 23.

The square root of 42335213 is about 6506.5515444051. The cubic root of 42335213 is about 348.5249843659.

Adding to 42335213 its reverse (31253324), we get a palindrome (73588537).

The spelling of 42335213 in words is "forty-two million, three hundred thirty-five thousand, two hundred thirteen".