1213045104 has 40 divisors (see below), whose sum is σ = 3135044880. Its totient is φ = 404174848.

The previous prime is 1213045087. The next prime is 1213045123. The reversal of 1213045104 is 4015403121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158944 + ... + 166400.

It is an arithmetic number, because the mean of its divisors is an integer number (78376122).

Almost surely, 2^1213045104 is an apocalyptic number.

It is an amenable number.

1213045104 is an abundant number, since it is smaller than the sum of its proper divisors (1921999776).

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

1213045104 is a wasteful number, since it uses less digits than its factorization.

1213045104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10857 (or 10851 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1213045104 is about 34828.7970507165. The cubic root of 1213045104 is about 1066.4953914233.

Adding to 1213045104 its reverse (4015403121), we get a palindrome (5228448225).

The spelling of 1213045104 in words is "one billion, two hundred thirteen million, forty-five thousand, one hundred four".