42643135 has 16 divisors (see below), whose sum is σ = 53729280. Its totient is φ = 32447520.

The previous prime is 42643099. The next prime is 42643141. The reversal of 42643135 is 53134624.

It is not a de Polignac number, because 42643135 - 2⁹ = 42642623 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6814 + ... + 11476.

It is an arithmetic number, because the mean of its divisors is an integer number (3358080).

Almost surely, 2^42643135 is an apocalyptic number.

42643135 is a deficient number, since it is larger than the sum of its proper divisors (11086145).

42643135 is a wasteful number, since it uses less digits than its factorization.

42643135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4758.

The product of its digits is 8640, while the sum is 28.

The square root of 42643135 is about 6530.1711309888. The cubic root of 42643135 is about 349.3679340675.

Adding to 42643135 its reverse (53134624), we get a palindrome (95777759).

It can be divided in two parts, 42643 and 135, that added together give a triangular number (42778 = T₂₉₂).

The spelling of 42643135 in words is "forty-two million, six hundred forty-three thousand, one hundred thirty-five".