42136325 has 72 divisors (see below), whose sum is σ = 68700960. Its totient is φ = 25334400.

The previous prime is 42136307. The next prime is 42136327. The reversal of 42136325 is 52363124.

It is not a de Polignac number, because 42136325 - 2⁶ = 42136261 is a prime.

Its product of digits (4320) is a multiple of the sum of its prime divisors (135).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42136294 and 42136303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42136327) 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 71 ways as a sum of consecutive naturals, for example, 714146 + ... + 714204.

It is an arithmetic number, because the mean of its divisors is an integer number (954180).

Almost surely, 2^42136325 is an apocalyptic number.

It is an amenable number.

42136325 is a deficient number, since it is larger than the sum of its proper divisors (26564635).

42136325 is a wasteful number, since it uses less digits than its factorization.

42136325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 135 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 42136325 is about 6491.2498796457. The cubic root of 42136325 is about 347.9783450875.

Adding to 42136325 its reverse (52363124), we get a palindrome (94499449).

The spelling of 42136325 in words is "forty-two million, one hundred thirty-six thousand, three hundred twenty-five".