42071505 has 16 divisors (see below), whose sum is σ = 76930944. Its totient is φ = 19232640.

The previous prime is 42071503. The next prime is 42071507. The reversal of 42071505 is 50517024.

42071505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42071503) and next prime (42071507).

It is not a de Polignac number, because 42071505 - 2¹ = 42071503 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42071503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200236 + ... + 200445.

It is an arithmetic number, because the mean of its divisors is an integer number (4808184).

Almost surely, 2^42071505 is an apocalyptic number.

It is an amenable number.

42071505 is a deficient number, since it is larger than the sum of its proper divisors (34859439).

42071505 is a wasteful number, since it uses less digits than its factorization.

42071505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400696.

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 42071505 is about 6486.2550828656. The cubic root of 42071505 is about 347.7998171589.

Adding to 42071505 its reverse (50517024), we get a palindrome (92588529).

The spelling of 42071505 in words is "forty-two million, seventy-one thousand, five hundred five".