42312134 has 16 divisors (see below), whose sum is σ = 66382848. Its totient is φ = 20188872.

The previous prime is 42312121. The next prime is 42312143. The reversal of 42312134 is 43121324.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

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, 26219 + ... + 27785.

It is an arithmetic number, because the mean of its divisors is an integer number (4148928).

Almost surely, 2^42312134 is an apocalyptic number.

42312134 is a deficient number, since it is larger than the sum of its proper divisors (24070714).

42312134 is a wasteful number, since it uses less digits than its factorization.

42312134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179.

The product of its digits is 576, while the sum is 20.

The square root of 42312134 is about 6504.7777825226. Note that the first 4 decimals coincide. The cubic root of 42312134 is about 348.4616401689.

Adding to 42312134 its reverse (43121324), we get a palindrome (85433458).

The spelling of 42312134 in words is "forty-two million, three hundred twelve thousand, one hundred thirty-four".