42547163 has 2 divisors, whose sum is σ = 42547164. Its totient is φ = 42547162.

The previous prime is 42547139. The next prime is 42547177. The reversal of 42547163 is 36174524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42547163 - 2¹⁴ = 42530779 is a prime.

It is a super-2 number, since 2×42547163² = 3620522158697138, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42547103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21273581 + 21273582.

It is an arithmetic number, because the mean of its divisors is an integer number (21273582).

Almost surely, 2^42547163 is an apocalyptic number.

42547163 is a deficient number, since it is larger than the sum of its proper divisors (1).

42547163 is an equidigital number, since it uses as much as digits as its factorization.

42547163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 32.

The square root of 42547163 is about 6522.8186392081. The cubic root of 42547163 is about 349.1056431223.

The spelling of 42547163 in words is "forty-two million, five hundred forty-seven thousand, one hundred sixty-three".