42315105 has 16 divisors (see below), whose sum is σ = 77376384. Its totient is φ = 19344000.

The previous prime is 42315103. The next prime is 42315113. The reversal of 42315105 is 50151324.

It is not a de Polignac number, because 42315105 - 2¹ = 42315103 is a prime.

It is a super-2 number, since 2×42315105² = 3581136222322050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (42315103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201396 + ... + 201605.

It is an arithmetic number, because the mean of its divisors is an integer number (4836024).

Almost surely, 2^42315105 is an apocalyptic number.

It is an amenable number.

42315105 is a deficient number, since it is larger than the sum of its proper divisors (35061279).

42315105 is a wasteful number, since it uses less digits than its factorization.

42315105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403016.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 42315105 is about 6505.0061491132. The cubic root of 42315105 is about 348.4697958696.

Adding to 42315105 its reverse (50151324), we get a palindrome (92466429).

The spelling of 42315105 in words is "forty-two million, three hundred fifteen thousand, one hundred five".