1213606052 has 6 divisors (see below), whose sum is σ = 2123810598. Its totient is φ = 606803024.

The previous prime is 1213606039. The next prime is 1213606061. The reversal of 1213606052 is 2506063121.

It can be written as a sum of positive squares in only one way, i.e., 1201592896 + 12013156 = 34664^2 + 3466^2 .

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 as a sum of consecutive naturals, namely, 151700753 + ... + 151700760.

It is an arithmetic number, because the mean of its divisors is an integer number (353968433).

Almost surely, 2^1213606052 is an apocalyptic number.

It is an amenable number.

1213606052 is a deficient number, since it is larger than the sum of its proper divisors (910204546).

1213606052 is a wasteful number, since it uses less digits than its factorization.

1213606052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303401517 (or 303401515 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1213606052 is about 34836.8490538395. The cubic root of 1213606052 is about 1066.6597591133.

Adding to 1213606052 its reverse (2506063121), we get a palindrome (3719669173).

The spelling of 1213606052 in words is "one billion, two hundred thirteen million, six hundred six thousand, fifty-two".