42135487 has 8 divisors (see below), whose sum is σ = 42653520. Its totient is φ = 41620800.

The previous prime is 42135481. The next prime is 42135491. The reversal of 42135487 is 78453124.

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 42135487 - 2¹¹ = 42133439 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 (42135481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31737 + ... + 33037.

It is an arithmetic number, because the mean of its divisors is an integer number (5331690).

Almost surely, 2^42135487 is an apocalyptic number.

42135487 is a deficient number, since it is larger than the sum of its proper divisors (518033).

42135487 is a wasteful number, since it uses less digits than its factorization.

42135487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673.

The product of its digits is 26880, while the sum is 34.

The square root of 42135487 is about 6491.1853308930. The cubic root of 42135487 is about 347.9760382277.

The spelling of 42135487 in words is "forty-two million, one hundred thirty-five thousand, four hundred eighty-seven".