42145134 has 8 divisors (see below), whose sum is σ = 84290280. Its totient is φ = 14048376.

The previous prime is 42145133. The next prime is 42145141. The reversal of 42145134 is 43154124.

It is a sphenic number, since it is the product of 3 distinct primes.

42145134 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42145133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3512089 + ... + 3512100.

It is an arithmetic number, because the mean of its divisors is an integer number (10536285).

Almost surely, 2^42145134 is an apocalyptic number.

42145134 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42145134 is a wasteful number, since it uses less digits than its factorization.

42145134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7024194.

The product of its digits is 1920, while the sum is 24.

The square root of 42145134 is about 6491.9283729875. The cubic root of 42145134 is about 348.0025927935.

Adding to 42145134 its reverse (43154124), we get a palindrome (85299258).

The spelling of 42145134 in words is "forty-two million, one hundred forty-five thousand, one hundred thirty-four".