123246647 has 2 divisors, whose sum is σ = 123246648. Its totient is φ = 123246646.

The previous prime is 123246637. The next prime is 123246649. The reversal of 123246647 is 746642321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123246647 - 2⁸ = 123246391 is a prime.

Together with 123246649, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123246649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61623323 + 61623324.

It is an arithmetic number, because the mean of its divisors is an integer number (61623324).

Almost surely, 2^123246647 is an apocalyptic number.

123246647 is a deficient number, since it is larger than the sum of its proper divisors (1).

123246647 is an equidigital number, since it uses as much as digits as its factorization.

123246647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 35.

The square root of 123246647 is about 11101.6506430350. The cubic root of 123246647 is about 497.6511793610.

Adding to 123246647 its reverse (746642321), we get a palindrome (869888968).

The spelling of 123246647 in words is "one hundred twenty-three million, two hundred forty-six thousand, six hundred forty-seven".