442513144135 has 4 divisors (see below), whose sum is σ = 531015772968. Its totient is φ = 354010515304.

The previous prime is 442513144109. The next prime is 442513144141. The reversal of 442513144135 is 531441315244.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 442513144135 - 2⁵ = 442513144103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 442513144094 and 442513144103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44251314409 + ... + 44251314418.

It is an arithmetic number, because the mean of its divisors is an integer number (132753943242).

Almost surely, 2^442513144135 is an apocalyptic number.

442513144135 is a deficient number, since it is larger than the sum of its proper divisors (88502628833).

442513144135 is an equidigital number, since it uses as much as digits as its factorization.

442513144135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88502628832.

The product of its digits is 115200, while the sum is 37.

Adding to 442513144135 its reverse (531441315244), we get a palindrome (973954459379).

The spelling of 442513144135 in words is "four hundred forty-two billion, five hundred thirteen million, one hundred forty-four thousand, one hundred thirty-five".