442152539 has 2 divisors, whose sum is σ = 442152540. Its totient is φ = 442152538.

The previous prime is 442152533. The next prime is 442152577. The reversal of 442152539 is 935251244.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 442152539 - 2⁸ = 442152283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442152499 and 442152508.

It is not a weakly prime, because it can be changed into another prime (442152533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221076269 + 221076270.

It is an arithmetic number, because the mean of its divisors is an integer number (221076270).

Almost surely, 2^442152539 is an apocalyptic number.

442152539 is a deficient number, since it is larger than the sum of its proper divisors (1).

442152539 is an equidigital number, since it uses as much as digits as its factorization.

442152539 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43200, while the sum is 35.

The square root of 442152539 is about 21027.4234988503. The cubic root of 442152539 is about 761.8287786130.

The spelling of 442152539 in words is "four hundred forty-two million, one hundred fifty-two thousand, five hundred thirty-nine".