1230806653 has 2 divisors, whose sum is σ = 1230806654. Its totient is φ = 1230806652.

The previous prime is 1230806623. The next prime is 1230806711. The reversal of 1230806653 is 3566080321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1159606809 + 71199844 = 34053^2 + 8438^2 .

It is an emirp because it is prime and its reverse (3566080321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230806653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230806623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615403326 + 615403327.

It is an arithmetic number, because the mean of its divisors is an integer number (615403327).

Almost surely, 2^1230806653 is an apocalyptic number.

It is an amenable number.

1230806653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230806653 is an equidigital number, since it uses as much as digits as its factorization.

1230806653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1230806653 is about 35082.8541170755. The cubic root of 1230806653 is about 1071.6754410856.

Adding to 1230806653 its reverse (3566080321), we get a palindrome (4796886974).

The spelling of 1230806653 in words is "one billion, two hundred thirty million, eight hundred six thousand, six hundred fifty-three".