42133215 has 8 divisors (see below), whose sum is σ = 67413168. Its totient is φ = 22471040.

The previous prime is 42133193. The next prime is 42133219. The reversal of 42133215 is 51233124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42133215 - 2⁹ = 42132703 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42133191 and 42133200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42133219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1404426 + ... + 1404455.

It is an arithmetic number, because the mean of its divisors is an integer number (8426646).

Almost surely, 2^42133215 is an apocalyptic number.

42133215 is a deficient number, since it is larger than the sum of its proper divisors (25279953).

42133215 is a wasteful number, since it uses less digits than its factorization.

42133215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808889.

The product of its digits is 720, while the sum is 21.

The square root of 42133215 is about 6491.0103219761. The cubic root of 42133215 is about 347.9697836758.

Adding to 42133215 its reverse (51233124), we get a palindrome (93366339).

Subtracting 42133215 from its reverse (51233124), we obtain a palindrome (9099909).

The spelling of 42133215 in words is "forty-two million, one hundred thirty-three thousand, two hundred fifteen".