42513112 has 8 divisors (see below), whose sum is σ = 79712100. Its totient is φ = 21256552.

The previous prime is 42513103. The next prime is 42513113. The reversal of 42513112 is 21131524.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 42513112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42513113) 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, 2657062 + ... + 2657077.

Almost surely, 2^42513112 is an apocalyptic number.

It is an amenable number.

42513112 is a deficient number, since it is larger than the sum of its proper divisors (37198988).

42513112 is a wasteful number, since it uses less digits than its factorization.

42513112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5314145 (or 5314141 counting only the distinct ones).

The product of its digits is 240, while the sum is 19.

The square root of 42513112 is about 6520.2079721432. The cubic root of 42513112 is about 349.0124871354.

Adding to 42513112 its reverse (21131524), we get a palindrome (63644636).

The spelling of 42513112 in words is "forty-two million, five hundred thirteen thousand, one hundred twelve".