42005200145 has 16 divisors (see below), whose sum is σ = 50627166912. Its totient is φ = 33456984000.

The previous prime is 42005200141. The next prime is 42005200163. The reversal of 42005200145 is 54100250024.

It is a happy number.

It is not a de Polignac number, because 42005200145 - 2² = 42005200141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42005200145.

It is not an unprimeable number, because it can be changed into a prime (42005200141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4228154 + ... + 4238076.

It is an arithmetic number, because the mean of its divisors is an integer number (3164197932).

Almost surely, 2^42005200145 is an apocalyptic number.

It is an amenable number.

42005200145 is a deficient number, since it is larger than the sum of its proper divisors (8621966767).

42005200145 is a wasteful number, since it uses less digits than its factorization.

42005200145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13552.

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 42005200145 its reverse (54100250024), we get a palindrome (96105450169).

The spelling of 42005200145 in words is "forty-two billion, five million, two hundred thousand, one hundred forty-five".