123264247 has 2 divisors, whose sum is σ = 123264248. Its totient is φ = 123264246.

The previous prime is 123264217. The next prime is 123264257. The reversal of 123264247 is 742462321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123264247 - 2¹⁹ = 122739959 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123264217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61632123 + 61632124.

It is an arithmetic number, because the mean of its divisors is an integer number (61632124).

Almost surely, 2^123264247 is an apocalyptic number.

123264247 is a deficient number, since it is larger than the sum of its proper divisors (1).

123264247 is an equidigital number, since it uses as much as digits as its factorization.

123264247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16128, while the sum is 31.

The square root of 123264247 is about 11102.4432896548. The cubic root of 123264247 is about 497.6748669395.

The spelling of 123264247 in words is "one hundred twenty-three million, two hundred sixty-four thousand, two hundred forty-seven".