42115305 has 16 divisors (see below), whose sum is σ = 70931520. Its totient is φ = 21279168.

The previous prime is 42115303. The next prime is 42115313. The reversal of 42115305 is 50351124.

It is not a de Polignac number, because 42115305 - 2¹ = 42115303 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42115303) 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, 73602 + ... + 74171.

It is an arithmetic number, because the mean of its divisors is an integer number (4433220).

Almost surely, 2^42115305 is an apocalyptic number.

It is an amenable number.

42115305 is a deficient number, since it is larger than the sum of its proper divisors (28816215).

42115305 is a wasteful number, since it uses less digits than its factorization.

42115305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147800.

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

The square root of 42115305 is about 6489.6305750019. The cubic root of 42115305 is about 347.9204716537.

Adding to 42115305 its reverse (50351124), we get a palindrome (92466429).

The spelling of 42115305 in words is "forty-two million, one hundred fifteen thousand, three hundred five".