42209101 has 8 divisors (see below), whose sum is σ = 47117664. Its totient is φ = 37479120.

The previous prime is 42209099. The next prime is 42209137. The reversal of 42209101 is 10190224.

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 42209101 - 2¹ = 42209099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42209191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44146 + ... + 45091.

It is an arithmetic number, because the mean of its divisors is an integer number (5889708).

Almost surely, 2^42209101 is an apocalyptic number.

It is an amenable number.

42209101 is a deficient number, since it is larger than the sum of its proper divisors (4908563).

42209101 is a wasteful number, since it uses less digits than its factorization.

42209101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89291.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 42209101 is about 6496.8531613390. The cubic root of 42209101 is about 348.1785674708.

Adding to 42209101 its reverse (10190224), we get a palindrome (52399325).

The spelling of 42209101 in words is "forty-two million, two hundred nine thousand, one hundred one".