123415073 has 2 divisors, whose sum is σ = 123415074. Its totient is φ = 123415072.

The previous prime is 123415057. The next prime is 123415093. The reversal of 123415073 is 370514321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120275089 + 3139984 = 10967^2 + 1772^2 .

It is an emirp because it is prime and its reverse (370514321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123415073 - 2⁴ = 123415057 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123415093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61707536 + 61707537.

It is an arithmetic number, because the mean of its divisors is an integer number (61707537).

Almost surely, 2^123415073 is an apocalyptic number.

It is an amenable number.

123415073 is a deficient number, since it is larger than the sum of its proper divisors (1).

123415073 is an equidigital number, since it uses as much as digits as its factorization.

123415073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 123415073 is about 11109.2336819422. The cubic root of 123415073 is about 497.8777690156.

Adding to 123415073 its reverse (370514321), we get a palindrome (493929394).

The spelling of 123415073 in words is "one hundred twenty-three million, four hundred fifteen thousand, seventy-three".