42643101 has 8 divisors (see below), whose sum is σ = 56908384. Its totient is φ = 28403280.

The previous prime is 42643099. The next prime is 42643141. The reversal of 42643101 is 10134624.

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

It is not a de Polignac number, because 42643101 - 2¹ = 42643099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42643141) 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, 2035 + ... + 9456.

It is an arithmetic number, because the mean of its divisors is an integer number (7113548).

Almost surely, 2^42643101 is an apocalyptic number.

It is an amenable number.

42643101 is a deficient number, since it is larger than the sum of its proper divisors (14265283).

42643101 is a wasteful number, since it uses less digits than its factorization.

42643101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12731.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 42643101 is about 6530.1685276875. The cubic root of 42643101 is about 349.3678412154.

Adding to 42643101 its reverse (10134624), we get a palindrome (52777725).

The spelling of 42643101 in words is "forty-two million, six hundred forty-three thousand, one hundred one".