1213606063 has 4 divisors (see below), whose sum is σ = 1266371568. Its totient is φ = 1160840560.

The previous prime is 1213606061. The next prime is 1213606067. The reversal of 1213606063 is 3606063121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3606063121 = 17189 ⋅209789.

It is a cyclic number.

It is not a de Polignac number, because 1213606063 - 2¹ = 1213606061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213606061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26382718 + ... + 26382763.

It is an arithmetic number, because the mean of its divisors is an integer number (316592892).

Almost surely, 2^1213606063 is an apocalyptic number.

1213606063 is a deficient number, since it is larger than the sum of its proper divisors (52765505).

1213606063 is an equidigital number, since it uses as much as digits as its factorization.

1213606063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52765504.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 1213606063 is about 34836.8492117183. The cubic root of 1213606063 is about 1066.6597623360.

Adding to 1213606063 its reverse (3606063121), we get a palindrome (4819669184).

The spelling of 1213606063 in words is "one billion, two hundred thirteen million, six hundred six thousand, sixty-three".