1213606307 has 2 divisors, whose sum is σ = 1213606308. Its totient is φ = 1213606306.

The previous prime is 1213606301. The next prime is 1213606357. The reversal of 1213606307 is 7036063121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213606307 - 2⁴ = 1213606291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213606307.

It is not a weakly prime, because it can be changed into another prime (1213606301) by changing a digit.

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, 606803153 + 606803154.

It is an arithmetic number, because the mean of its divisors is an integer number (606803154).

Almost surely, 2^1213606307 is an apocalyptic number.

1213606307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213606307 is an equidigital number, since it uses as much as digits as its factorization.

1213606307 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 1213606307 is about 34836.8527137570. The cubic root of 1213606307 is about 1066.6598338212.

Adding to 1213606307 its reverse (7036063121), we get a palindrome (8249669428).

The spelling of 1213606307 in words is "one billion, two hundred thirteen million, six hundred six thousand, three hundred seven".