42150012 has 12 divisors (see below), whose sum is σ = 98350056. Its totient is φ = 14050000.

The previous prime is 42150011. The next prime is 42150029. The reversal of 42150012 is 21005124.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 42149973 and 42150000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42150011) 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 in 3 ways as a sum of consecutive naturals, for example, 1756239 + ... + 1756262.

It is an arithmetic number, because the mean of its divisors is an integer number (8195838).

Almost surely, 2^42150012 is an apocalyptic number.

It is an amenable number.

42150012 is an abundant number, since it is smaller than the sum of its proper divisors (56200044).

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

42150012 is a wasteful number, since it uses less digits than its factorization.

42150012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512508 (or 3512506 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 42150012 is about 6492.3040594230. The cubic root of 42150012 is about 348.0160185519.

Adding to 42150012 its reverse (21005124), we get a palindrome (63155136).

The spelling of 42150012 in words is "forty-two million, one hundred fifty thousand, twelve".