42915329 has 2 divisors, whose sum is σ = 42915330. Its totient is φ = 42915328.

The previous prime is 42915251. The next prime is 42915337. The reversal of 42915329 is 92351924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42601729 + 313600 = 6527^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 42915329 - 2¹² = 42911233 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (42915349) 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, 21457664 + 21457665.

It is an arithmetic number, because the mean of its divisors is an integer number (21457665).

Almost surely, 2^42915329 is an apocalyptic number.

It is an amenable number.

42915329 is a deficient number, since it is larger than the sum of its proper divisors (1).

42915329 is an equidigital number, since it uses as much as digits as its factorization.

42915329 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 42915329 is about 6550.9792397778. The cubic root of 42915329 is about 350.1097043861.

The spelling of 42915329 in words is "forty-two million, nine hundred fifteen thousand, three hundred twenty-nine".