1230625589 has 2 divisors, whose sum is σ = 1230625590. Its totient is φ = 1230625588.

The previous prime is 1230625577. The next prime is 1230625609. The reversal of 1230625589 is 9855260321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1117564900 + 113060689 = 33430^2 + 10633^2 .

It is an emirp because it is prime and its reverse (9855260321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1230625589 - 2²⁸ = 962190133 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230625549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615312794 + 615312795.

It is an arithmetic number, because the mean of its divisors is an integer number (615312795).

Almost surely, 2^1230625589 is an apocalyptic number.

It is an amenable number.

1230625589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230625589 is an equidigital number, since it uses as much as digits as its factorization.

1230625589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 1230625589 is about 35080.2735023546. The cubic root of 1230625589 is about 1071.6228871074.

The spelling of 1230625589 in words is "one billion, two hundred thirty million, six hundred twenty-five thousand, five hundred eighty-nine".