123325009 has 2 divisors, whose sum is σ = 123325010. Its totient is φ = 123325008.

The previous prime is 123325003. The next prime is 123325019. The reversal of 123325009 is 900523321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 123276609 + 48400 = 11103^2 + 220^2 .

It is an emirp because it is prime and its reverse (900523321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123325009 - 2⁵ = 123324977 is a prime.

It is not a weakly prime, because it can be changed into another prime (123325003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61662504 + 61662505.

It is an arithmetic number, because the mean of its divisors is an integer number (61662505).

Almost surely, 2^123325009 is an apocalyptic number.

It is an amenable number.

123325009 is a deficient number, since it is larger than the sum of its proper divisors (1).

123325009 is an equidigital number, since it uses as much as digits as its factorization.

123325009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 123325009 is about 11105.1793772095. The cubic root of 123325009 is about 497.7566282871.

The spelling of 123325009 in words is "one hundred twenty-three million, three hundred twenty-five thousand, nine".