42130245 has 8 divisors (see below), whose sum is σ = 67408416. Its totient is φ = 22469456.

The previous prime is 42130241. The next prime is 42130261. The reversal of 42130245 is 54203124.

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

It is a cyclic number.

It is not a de Polignac number, because 42130245 - 2² = 42130241 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42130241) 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, 1404327 + ... + 1404356.

It is an arithmetic number, because the mean of its divisors is an integer number (8426052).

Almost surely, 2^42130245 is an apocalyptic number.

It is an amenable number.

42130245 is a deficient number, since it is larger than the sum of its proper divisors (25278171).

42130245 is a wasteful number, since it uses less digits than its factorization.

42130245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808691.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42130245 is about 6490.7815399996. The cubic root of 42130245 is about 347.9616072720.

Adding to 42130245 its reverse (54203124), we get a palindrome (96333369).

The spelling of 42130245 in words is "forty-two million, one hundred thirty thousand, two hundred forty-five".