42259361 has 2 divisors, whose sum is σ = 42259362. Its totient is φ = 42259360.

The previous prime is 42259339. The next prime is 42259387. The reversal of 42259361 is 16395224.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32273761 + 9985600 = 5681^2 + 3160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42259361 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42259961) 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, 21129680 + 21129681.

It is an arithmetic number, because the mean of its divisors is an integer number (21129681).

Almost surely, 2^42259361 is an apocalyptic number.

It is an amenable number.

42259361 is a deficient number, since it is larger than the sum of its proper divisors (1).

42259361 is an equidigital number, since it uses as much as digits as its factorization.

42259361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 32.

The square root of 42259361 is about 6500.7200370421. The cubic root of 42259361 is about 348.3167091924.

The spelling of 42259361 in words is "forty-two million, two hundred fifty-nine thousand, three hundred sixty-one".