42147516 has 12 divisors (see below), whose sum is σ = 98344232. Its totient is φ = 14049168.

The previous prime is 42147509. The next prime is 42147541. The reversal of 42147516 is 61574124.

42147516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1756135 + ... + 1756158.

Almost surely, 2^42147516 is an apocalyptic number.

It is an amenable number.

42147516 is an abundant number, since it is smaller than the sum of its proper divisors (56196716).

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

42147516 is a wasteful number, since it uses less digits than its factorization.

42147516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512300 (or 3512298 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 42147516 is about 6492.1118289814. Note that the first 3 decimals coincide. The cubic root of 42147516 is about 348.0091489205.

The spelling of 42147516 in words is "forty-two million, one hundred forty-seven thousand, five hundred sixteen".