1213629163 has 2 divisors, whose sum is σ = 1213629164. Its totient is φ = 1213629162.

The previous prime is 1213629113. The next prime is 1213629169. The reversal of 1213629163 is 3619263121.

It is a strong prime.

It is an emirp because it is prime and its reverse (3619263121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213629163 - 2⁹ = 1213628651 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213629169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606814581 + 606814582.

It is an arithmetic number, because the mean of its divisors is an integer number (606814582).

Almost surely, 2^1213629163 is an apocalyptic number.

1213629163 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213629163 is an equidigital number, since it uses as much as digits as its factorization.

1213629163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 1213629163 is about 34837.1807556237. The cubic root of 1213629163 is about 1066.6665299587. Note that the first 3 decimals are identical.

The spelling of 1213629163 in words is "one billion, two hundred thirteen million, six hundred twenty-nine thousand, one hundred sixty-three".