123493147 has 2 divisors, whose sum is σ = 123493148. Its totient is φ = 123493146.

The previous prime is 123493133. The next prime is 123493157. The reversal of 123493147 is 741394321.

It is a strong prime.

It is an emirp because it is prime and its reverse (741394321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 123493147 - 2¹¹ = 123491099 is a prime.

It is not a weakly prime, because it can be changed into another prime (123493157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61746573 + 61746574.

It is an arithmetic number, because the mean of its divisors is an integer number (61746574).

Almost surely, 2^123493147 is an apocalyptic number.

123493147 is a deficient number, since it is larger than the sum of its proper divisors (1).

123493147 is an equidigital number, since it uses as much as digits as its factorization.

123493147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 34.

The square root of 123493147 is about 11112.7470501222. The cubic root of 123493147 is about 497.9827348950.

The spelling of 123493147 in words is "one hundred twenty-three million, four hundred ninety-three thousand, one hundred forty-seven".