123424747 has 2 divisors, whose sum is σ = 123424748. Its totient is φ = 123424746.

The previous prime is 123424729. The next prime is 123424751. The reversal of 123424747 is 747424321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123424747 is a prime.

It is not a weakly prime, because it can be changed into another prime (123424447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61712373 + 61712374.

It is an arithmetic number, because the mean of its divisors is an integer number (61712374).

Almost surely, 2^123424747 is an apocalyptic number.

123424747 is a deficient number, since it is larger than the sum of its proper divisors (1).

123424747 is an equidigital number, since it uses as much as digits as its factorization.

123424747 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37632, while the sum is 34.

The square root of 123424747 is about 11109.6690769797. The cubic root of 123424747 is about 497.8907775393.

The spelling of 123424747 in words is "one hundred twenty-three million, four hundred twenty-four thousand, seven hundred forty-seven".