42643151 has 4 divisors (see below), whose sum is σ = 42656304. Its totient is φ = 42630000.

The previous prime is 42643141. The next prime is 42643187. The reversal of 42643151 is 15134624.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42643151 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 42643151.

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 3 ways as a sum of consecutive naturals, for example, 2126 + ... + 9476.

It is an arithmetic number, because the mean of its divisors is an integer number (10664076).

Almost surely, 2^42643151 is an apocalyptic number.

42643151 is a deficient number, since it is larger than the sum of its proper divisors (13153).

42643151 is an equidigital number, since it uses as much as digits as its factorization.

42643151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13152.

The product of its digits is 2880, while the sum is 26.

The square root of 42643151 is about 6530.1723560715. The cubic root of 42643151 is about 349.3679777626.

Adding to 42643151 its reverse (15134624), we get a palindrome (57777775).

The spelling of 42643151 in words is "forty-two million, six hundred forty-three thousand, one hundred fifty-one".