42115315 has 16 divisors (see below), whose sum is σ = 56041056. Its totient is φ = 30124800.

The previous prime is 42115313. The next prime is 42115331. The reversal of 42115315 is 51351124.

It is a happy number.

It is not a de Polignac number, because 42115315 - 2¹ = 42115313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42115313) 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 in 15 ways as a sum of consecutive naturals, for example, 2922 + ... + 9631.

It is an arithmetic number, because the mean of its divisors is an integer number (3502566).

Almost surely, 2^42115315 is an apocalyptic number.

42115315 is a deficient number, since it is larger than the sum of its proper divisors (13925741).

42115315 is a wasteful number, since it uses less digits than its factorization.

42115315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12630.

The product of its digits is 600, while the sum is 22.

The square root of 42115315 is about 6489.6313454618. The cubic root of 42115315 is about 347.9204991909.

Adding to 42115315 its reverse (51351124), we get a palindrome (93466439).

The spelling of 42115315 in words is "forty-two million, one hundred fifteen thousand, three hundred fifteen".