442012547 has 2 divisors, whose sum is σ = 442012548. Its totient is φ = 442012546.

The previous prime is 442012541. The next prime is 442012573. The reversal of 442012547 is 745210244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442012547 - 2¹⁰ = 442011523 is a prime.

It is not a weakly prime, because it can be changed into another prime (442012541) by changing a digit.

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 as a sum of consecutive naturals, namely, 221006273 + 221006274.

It is an arithmetic number, because the mean of its divisors is an integer number (221006274).

Almost surely, 2^442012547 is an apocalyptic number.

442012547 is a deficient number, since it is larger than the sum of its proper divisors (1).

442012547 is an equidigital number, since it uses as much as digits as its factorization.

442012547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8960, while the sum is 29.

The square root of 442012547 is about 21024.0944394759. The cubic root of 442012547 is about 761.7483680589.

The spelling of 442012547 in words is "four hundred forty-two million, twelve thousand, five hundred forty-seven".