1275163044 has 12 divisors (see below), whose sum is σ = 2975380464. Its totient is φ = 425054344.

The previous prime is 1275163007. The next prime is 1275163061. The reversal of 1275163044 is 4403615721.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1275162996 and 1275163014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53131782 + ... + 53131805.

It is an arithmetic number, because the mean of its divisors is an integer number (247948372).

Almost surely, 2^1275163044 is an apocalyptic number.

It is an amenable number.

1275163044 is an abundant number, since it is smaller than the sum of its proper divisors (1700217420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1275163044 is a wasteful number, since it uses less digits than its factorization.

1275163044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106263594 (or 106263592 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 1275163044 is about 35709.4251423906. The cubic root of 1275163044 is about 1084.3976620920.

Adding to 1275163044 its reverse (4403615721), we get a palindrome (5678778765).

The spelling of 1275163044 in words is "one billion, two hundred seventy-five million, one hundred sixty-three thousand, forty-four".