42134425 has 12 divisors (see below), whose sum is σ = 53933056. Its totient is φ = 32619600.

The previous prime is 42134401. The next prime is 42134431. The reversal of 42134425 is 52443124.

It is a happy number.

42134425 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 42134425 - 2⁷ = 42134297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 42134425.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 26409 + ... + 27958.

Almost surely, 2^42134425 is an apocalyptic number.

It is an amenable number.

42134425 is a deficient number, since it is larger than the sum of its proper divisors (11798631).

42134425 is a wasteful number, since it uses less digits than its factorization.

42134425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54408 (or 54403 counting only the distinct ones).

The product of its digits is 3840, while the sum is 25.

The square root of 42134425 is about 6491.1035271362. The cubic root of 42134425 is about 347.9731146931.

Adding to 42134425 its reverse (52443124), we get a palindrome (94577549).

The spelling of 42134425 in words is "forty-two million, one hundred thirty-four thousand, four hundred twenty-five".