1213304632 has 8 divisors (see below), whose sum is σ = 2274946200. Its totient is φ = 606652312.

The previous prime is 1213304627. The next prime is 1213304647. The reversal of 1213304632 is 2364033121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 1213304597 and 1213304606.

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 as a sum of consecutive naturals, namely, 75831532 + ... + 75831547.

It is an arithmetic number, because the mean of its divisors is an integer number (284368275).

Almost surely, 2^1213304632 is an apocalyptic number.

It is an amenable number.

1213304632 is a deficient number, since it is larger than the sum of its proper divisors (1061641568).

1213304632 is a wasteful number, since it uses less digits than its factorization.

1213304632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151663085 (or 151663081 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 1213304632 is about 34832.5226189548. The cubic root of 1213304632 is about 1066.5714440170.

Adding to 1213304632 its reverse (2364033121), we get a palindrome (3577337753).

The spelling of 1213304632 in words is "one billion, two hundred thirteen million, three hundred four thousand, six hundred thirty-two".