124659971 has 2 divisors, whose sum is σ = 124659972. Its totient is φ = 124659970.

The previous prime is 124659947. The next prime is 124660033. The reversal of 124659971 is 179956421.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124659971 is a prime.

It is not a weakly prime, because it can be changed into another prime (124652971) 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, 62329985 + 62329986.

It is an arithmetic number, because the mean of its divisors is an integer number (62329986).

Almost surely, 2^124659971 is an apocalyptic number.

124659971 is a deficient number, since it is larger than the sum of its proper divisors (1).

124659971 is an equidigital number, since it uses as much as digits as its factorization.

124659971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 44.

The square root of 124659971 is about 11165.1229729009. The cubic root of 124659971 is about 499.5462162853.

The spelling of 124659971 in words is "one hundred twenty-four million, six hundred fifty-nine thousand, nine hundred seventy-one".