42207115 has 4 divisors (see below), whose sum is σ = 50648544. Its totient is φ = 33765688.

The previous prime is 42207103. The next prime is 42207131. The reversal of 42207115 is 51170224.

It is a happy number.

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 42207115 - 2⁵ = 42207083 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4220707 + ... + 4220716.

It is an arithmetic number, because the mean of its divisors is an integer number (12662136).

Almost surely, 2^42207115 is an apocalyptic number.

42207115 is a deficient number, since it is larger than the sum of its proper divisors (8441429).

42207115 is an equidigital number, since it uses as much as digits as its factorization.

42207115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8441428.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 42207115 is about 6496.7003163144. The cubic root of 42207115 is about 348.1731066147.

Adding to 42207115 its reverse (51170224), we get a palindrome (93377339).

The spelling of 42207115 in words is "forty-two million, two hundred seven thousand, one hundred fifteen".