42133125 has 40 divisors (see below), whose sum is σ = 73326528. Its totient is φ = 21472000.

The previous prime is 42133097. The next prime is 42133129. The reversal of 42133125 is 52133124.

It is not a de Polignac number, because 42133125 - 2⁵ = 42133093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42133129) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 42637 + ... + 43613.

Almost surely, 2^42133125 is an apocalyptic number.

It is an amenable number.

42133125 is a deficient number, since it is larger than the sum of its proper divisors (31193403).

42133125 is an equidigital number, since it uses as much as digits as its factorization.

42133125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1023 (or 1008 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 42133125 is about 6491.0033893074. The cubic root of 42133125 is about 347.9695359116.

Adding to 42133125 its reverse (52133124), we get a palindrome (94266249).

Subtracting 42133125 from its reverse (52133124), we obtain a palindrome (9999999).

It can be divided in two parts, 42133 and 125, that multiplied together give a palindrome (5266625).

The spelling of 42133125 in words is "forty-two million, one hundred thirty-three thousand, one hundred twenty-five".