42042135 has 16 divisors (see below), whose sum is σ = 67433184. Its totient is φ = 22367232.

The previous prime is 42042109. The next prime is 42042151. The reversal of 42042135 is 53124024.

It is not a de Polignac number, because 42042135 - 2⁵ = 42042103 is a prime.

It is a super-2 number, since 2×42042135² = 3535082230716450, which contains 22 as substring.

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, 3259 + ... + 9731.

It is an arithmetic number, because the mean of its divisors is an integer number (4214574).

Almost surely, 2^42042135 is an apocalyptic number.

42042135 is a deficient number, since it is larger than the sum of its proper divisors (25391049).

42042135 is a wasteful number, since it uses less digits than its factorization.

42042135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914.

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

The square root of 42042135 is about 6483.9906693332. The cubic root of 42042135 is about 347.7188656253.

Adding to 42042135 its reverse (53124024), we get a palindrome (95166159).

The spelling of 42042135 in words is "forty-two million, forty-two thousand, one hundred thirty-five".