42520134 has 8 divisors (see below), whose sum is σ = 85040280. Its totient is φ = 14173376.

The previous prime is 42520133. The next prime is 42520139. The reversal of 42520134 is 43102524.

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

42520134 is an admirable number.

It is a super-3 number, since 3×42520134³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42520134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42520133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3543339 + ... + 3543350.

It is an arithmetic number, because the mean of its divisors is an integer number (10630035).

Almost surely, 2^42520134 is an apocalyptic number.

42520134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42520134 is a wasteful number, since it uses less digits than its factorization.

42520134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7086694.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42520134 is about 6520.7464296659. The cubic root of 42520134 is about 349.0317018408.

Adding to 42520134 its reverse (43102524), we get a palindrome (85622658).

The spelling of 42520134 in words is "forty-two million, five hundred twenty thousand, one hundred thirty-four".