42143512 has 16 divisors (see below), whose sum is σ = 79187400. Its totient is φ = 21026880.

The previous prime is 42143509. The next prime is 42143513. The reversal of 42143512 is 21534124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42143513) 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, 1437 + ... + 9292.

Almost surely, 2^42143512 is an apocalyptic number.

It is an amenable number.

42143512 is a deficient number, since it is larger than the sum of its proper divisors (37043888).

42143512 is a wasteful number, since it uses less digits than its factorization.

42143512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11226 (or 11222 counting only the distinct ones).

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

The square root of 42143512 is about 6491.8034474251. The cubic root of 42143512 is about 347.9981283204.

Adding to 42143512 its reverse (21534124), we get a palindrome (63677636).

The spelling of 42143512 in words is "forty-two million, one hundred forty-three thousand, five hundred twelve".