1009534531442 has 8 divisors (see below), whose sum is σ = 1555228872876. Its totient is φ = 491124907152.

The previous prime is 1009534531403. The next prime is 1009534531459. The reversal of 1009534531442 is 2441354359001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 806657255881 + 202877275561 = 898141^2 + 450419^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1009534531442.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6821179193 + ... + 6821179340.

Almost surely, 2^{1009534531442} is an apocalyptic number.

1009534531442 is a deficient number, since it is larger than the sum of its proper divisors (545694341434).

1009534531442 is a wasteful number, since it uses less digits than its factorization.

1009534531442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13642358572.

The product of its (nonzero) digits is 259200, while the sum is 41.

The spelling of 1009534531442 in words is "one trillion, nine billion, five hundred thirty-four million, five hundred thirty-one thousand, four hundred forty-two".