42106155 has 64 divisors (see below), whose sum is σ = 83973120. Its totient is φ = 17542656.

The previous prime is 42106133. The next prime is 42106157. The reversal of 42106155 is 55160124.

42106155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42106155 - 2¹² = 42102059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42106157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 148644 + ... + 148926.

It is an arithmetic number, because the mean of its divisors is an integer number (1312080).

Almost surely, 2^42106155 is an apocalyptic number.

42106155 is a deficient number, since it is larger than the sum of its proper divisors (41866965).

42106155 is a wasteful number, since it uses less digits than its factorization.

42106155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 42106155 is about 6488.9255659161. The cubic root of 42106155 is about 347.8952733488.

Adding to 42106155 its reverse (55160124), we get a palindrome (97266279).

The spelling of 42106155 in words is "forty-two million, one hundred six thousand, one hundred fifty-five".