42512134 has 16 divisors (see below), whose sum is σ = 73878048. Its totient is φ = 17969472.

The previous prime is 42512131. The next prime is 42512137. The reversal of 42512134 is 43121524.

It is an interprime number because it is at equal distance from previous prime (42512131) and next prime (42512137).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42512131) 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 7 ways as a sum of consecutive naturals, for example, 19777 + ... + 21820.

It is an arithmetic number, because the mean of its divisors is an integer number (4617378).

Almost surely, 2^42512134 is an apocalyptic number.

42512134 is a deficient number, since it is larger than the sum of its proper divisors (31365914).

42512134 is a wasteful number, since it uses less digits than its factorization.

42512134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41679.

The product of its digits is 960, while the sum is 22.

The square root of 42512134 is about 6520.1329741041. The cubic root of 42512134 is about 349.0098108095.

Adding to 42512134 its reverse (43121524), we get a palindrome (85633658).

The spelling of 42512134 in words is "forty-two million, five hundred twelve thousand, one hundred thirty-four".