1230000817 has 2 divisors, whose sum is σ = 1230000818. Its totient is φ = 1230000816.

The previous prime is 1230000791. The next prime is 1230000911. The reversal of 1230000817 is 7180000321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 643586161 + 586414656 = 25369^2 + 24216^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230000817 - 2⁷ = 1230000689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1230000517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615000408 + 615000409.

It is an arithmetic number, because the mean of its divisors is an integer number (615000409).

Almost surely, 2^1230000817 is an apocalyptic number.

It is an amenable number.

1230000817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230000817 is an equidigital number, since it uses as much as digits as its factorization.

1230000817 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1230000817 is about 35071.3674811804. The cubic root of 1230000817 is about 1071.4415069177.

The spelling of 1230000817 in words is "one billion, two hundred thirty million, eight hundred seventeen", and thus it is an aban number.