42135042 has 8 divisors (see below), whose sum is σ = 84270096. Its totient is φ = 14045012.

The previous prime is 42135031. The next prime is 42135047. The reversal of 42135042 is 24053124.

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

42135042 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (42135047) 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, 3511248 + ... + 3511259.

It is an arithmetic number, because the mean of its divisors is an integer number (10533762).

Almost surely, 2^42135042 is an apocalyptic number.

42135042 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.

42135042 is a wasteful number, since it uses less digits than its factorization.

42135042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7022512.

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

The square root of 42135042 is about 6491.1510535497. The cubic root of 42135042 is about 347.9748132121.

Adding to 42135042 its reverse (24053124), we get a palindrome (66188166).

The spelling of 42135042 in words is "forty-two million, one hundred thirty-five thousand, forty-two".