42150105 has 64 divisors (see below), whose sum is σ = 78693120. Its totient is φ = 21385728.

The previous prime is 42150047. The next prime is 42150149. The reversal of 42150105 is 50105124.

It is not a de Polignac number, because 42150105 - 2⁷ = 42149977 is a prime.

It is a super-2 number, since 2×42150105² = 3553262703022050, which contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 307597 + ... + 307733.

It is an arithmetic number, because the mean of its divisors is an integer number (1229580).

Almost surely, 2^42150105 is an apocalyptic number.

42150105 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

42150105 is a deficient number, since it is larger than the sum of its proper divisors (36543015).

42150105 is a wasteful number, since it uses less digits than its factorization.

42150105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 42150105 is about 6492.3112217453. The cubic root of 42150105 is about 348.0162745064.

Adding to 42150105 its reverse (50105124), we get a palindrome (92255229).

The spelling of 42150105 in words is "forty-two million, one hundred fifty thousand, one hundred five".