42145132 has 6 divisors (see below), whose sum is σ = 73753988. Its totient is φ = 21072564.

The previous prime is 42145127. The next prime is 42145133. The reversal of 42145132 is 23154124.

It is not an unprimeable number, because it can be changed into a prime (42145133) 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 as a sum of consecutive naturals, namely, 5268138 + ... + 5268145.

Almost surely, 2^42145132 is an apocalyptic number.

It is an amenable number.

42145132 is a deficient number, since it is larger than the sum of its proper divisors (31608856).

42145132 is a wasteful number, since it uses less digits than its factorization.

42145132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10536287 (or 10536285 counting only the distinct ones).

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

The square root of 42145132 is about 6491.9282189501. The cubic root of 42145132 is about 348.0025872886.

Adding to 42145132 its reverse (23154124), we get a palindrome (65299256).

The spelling of 42145132 in words is "forty-two million, one hundred forty-five thousand, one hundred thirty-two".