42566147 has 16 divisors (see below), whose sum is σ = 49043232. Its totient is φ = 36595200.

The previous prime is 42566141. The next prime is 42566149. The reversal of 42566147 is 74166524.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42566147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42566141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21368 + ... + 23274.

It is an arithmetic number, because the mean of its divisors is an integer number (3065202).

Almost surely, 2^42566147 is an apocalyptic number.

42566147 is a deficient number, since it is larger than the sum of its proper divisors (6477085).

42566147 is a wasteful number, since it uses less digits than its factorization.

42566147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2038.

The product of its digits is 40320, while the sum is 35.

The square root of 42566147 is about 6524.2736760501. The cubic root of 42566147 is about 349.1575575596.

The spelling of 42566147 in words is "forty-two million, five hundred sixty-six thousand, one hundred forty-seven".