42125135 has 8 divisors (see below), whose sum is σ = 54438720. Its totient is φ = 31107744.

The previous prime is 42125119. The next prime is 42125137. The reversal of 42125135 is 53152124.

42125135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 42125135 - 2⁴ = 42125119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42125135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42125137) 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 7 ways as a sum of consecutive naturals, for example, 323975 + ... + 324104.

It is an arithmetic number, because the mean of its divisors is an integer number (6804840).

Almost surely, 2^42125135 is an apocalyptic number.

42125135 is a deficient number, since it is larger than the sum of its proper divisors (12313585).

42125135 is a wasteful number, since it uses less digits than its factorization.

42125135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 648097.

The product of its digits is 1200, while the sum is 23.

The square root of 42125135 is about 6490.3878928767. The cubic root of 42125135 is about 347.9475385532.

Adding to 42125135 its reverse (53152124), we get a palindrome (95277259).

The spelling of 42125135 in words is "forty-two million, one hundred twenty-five thousand, one hundred thirty-five".