42071115 has 16 divisors (see below), whose sum is σ = 67730688. Its totient is φ = 22298976.

The previous prime is 42071089. The next prime is 42071137. The reversal of 42071115 is 51117024.

It is a happy number.

It is not a de Polignac number, because 42071115 - 2⁸ = 42070859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42071091 and 42071100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6159 + ... + 11048.

It is an arithmetic number, because the mean of its divisors is an integer number (4233168).

Almost surely, 2^42071115 is an apocalyptic number.

42071115 is a deficient number, since it is larger than the sum of its proper divisors (25659573).

42071115 is a wasteful number, since it uses less digits than its factorization.

42071115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17378.

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 42071115 is about 6486.2250192234. The cubic root of 42071115 is about 347.7987424620.

Adding to 42071115 its reverse (51117024), we get a palindrome (93188139).

The spelling of 42071115 in words is "forty-two million, seventy-one thousand, one hundred fifteen".