42065155 has 16 divisors (see below), whose sum is σ = 55826784. Its totient is φ = 30170880.

The previous prime is 42065119. The next prime is 42065203. The reversal of 42065155 is 55156024.

It is not a de Polignac number, because 42065155 - 2⁷ = 42065027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1224 + ... + 9253.

It is an arithmetic number, because the mean of its divisors is an integer number (3489174).

Almost surely, 2^42065155 is an apocalyptic number.

42065155 is a deficient number, since it is larger than the sum of its proper divisors (13761629).

42065155 is a wasteful number, since it uses less digits than its factorization.

42065155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10566.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 42065155 is about 6485.7655677645. The cubic root of 42065155 is about 347.7823180625.

The spelling of 42065155 in words is "forty-two million, sixty-five thousand, one hundred fifty-five".