1005444542132 has 24 divisors (see below), whose sum is σ = 1893571069320. Its totient is φ = 465393807360.

The previous prime is 1005444542129. The next prime is 1005444542173. The reversal of 1005444542132 is 2312454445001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 85541040676 + 919903501456 = 292474^2 + 959116^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1005444542092 and 1005444542101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121192157 + ... + 121200452.

It is an arithmetic number, because the mean of its divisors is an integer number (78898794555).

Almost surely, 2^{1005444542132} is an apocalyptic number.

It is an amenable number.

1005444542132 is a deficient number, since it is larger than the sum of its proper divisors (888126527188).

1005444542132 is a wasteful number, since it uses less digits than its factorization.

1005444542132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242392691 (or 242392689 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 35.

Adding to 1005444542132 its reverse (2312454445001), we get a palindrome (3317898987133).

The spelling of 1005444542132 in words is "one trillion, five billion, four hundred forty-four million, five hundred forty-two thousand, one hundred thirty-two".