1281044553146 has 8 divisors (see below), whose sum is σ = 2022701926080. Its totient is φ = 606810577788.

The previous prime is 1281044553143. The next prime is 1281044553149. The reversal of 1281044553146 is 6413554401821.

It is an interprime number because it is at equal distance from previous prime (1281044553143) and next prime (1281044553149).

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

It is a junction number, because it is equal to n+sod(n) for n = 1281044553097 and 1281044553106.

It is not an unprimeable number, because it can be changed into a prime (1281044553143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16855849346 + ... + 16855849421.

It is an arithmetic number, because the mean of its divisors is an integer number (252837740760).

Almost surely, 2^{1281044553146} is an apocalyptic number.

1281044553146 is a deficient number, since it is larger than the sum of its proper divisors (741657372934).

1281044553146 is a wasteful number, since it uses less digits than its factorization.

1281044553146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33711698788.

The product of its (nonzero) digits is 460800, while the sum is 44.

Adding to 1281044553146 its reverse (6413554401821), we get a palindrome (7694598954967).

The spelling of 1281044553146 in words is "one trillion, two hundred eighty-one billion, forty-four million, five hundred fifty-three thousand, one hundred forty-six".