42130115 has 4 divisors (see below), whose sum is σ = 50556144. Its totient is φ = 33704088.

The previous prime is 42130111. The next prime is 42130117. The reversal of 42130115 is 51103124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42130115 - 2² = 42130111 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42130093 and 42130102.

It is not an unprimeable number, because it can be changed into a prime (42130111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4213007 + ... + 4213016.

It is an arithmetic number, because the mean of its divisors is an integer number (12639036).

Almost surely, 2^42130115 is an apocalyptic number.

42130115 is a deficient number, since it is larger than the sum of its proper divisors (8426029).

42130115 is an equidigital number, since it uses as much as digits as its factorization.

42130115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8426028.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 42130115 is about 6490.7715257895. The cubic root of 42130115 is about 347.9612493735.

Adding to 42130115 its reverse (51103124), we get a palindrome (93233239).

The spelling of 42130115 in words is "forty-two million, one hundred thirty thousand, one hundred fifteen".