42134025 has 12 divisors (see below), whose sum is σ = 69661712. Its totient is φ = 22471440.

The previous prime is 42134021. The next prime is 42134047. The reversal of 42134025 is 52043124.

It is not a de Polignac number, because 42134025 - 2² = 42134021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42133992 and 42134010.

It is not an unprimeable number, because it can be changed into a prime (42134021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 280819 + ... + 280968.

Almost surely, 2^42134025 is an apocalyptic number.

It is an amenable number.

42134025 is a deficient number, since it is larger than the sum of its proper divisors (27527687).

42134025 is a wasteful number, since it uses less digits than its factorization.

42134025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561800 (or 561795 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 42134025 is about 6491.0727156611. The cubic root of 42134025 is about 347.9720135374.

Adding to 42134025 its reverse (52043124), we get a palindrome (94177149).

Subtracting 42134025 from its reverse (52043124), we obtain a palindrome (9909099).

The spelling of 42134025 in words is "forty-two million, one hundred thirty-four thousand, twenty-five".