124991743 has 2 divisors, whose sum is σ = 124991744. Its totient is φ = 124991742.

The previous prime is 124991731. The next prime is 124991767. The reversal of 124991743 is 347199421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124991743 - 2⁹ = 124991231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 124991696 and 124991705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124995743) 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, 62495871 + 62495872.

It is an arithmetic number, because the mean of its divisors is an integer number (62495872).

Almost surely, 2^124991743 is an apocalyptic number.

124991743 is a deficient number, since it is larger than the sum of its proper divisors (1).

124991743 is an equidigital number, since it uses as much as digits as its factorization.

124991743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 40.

The square root of 124991743 is about 11179.9706171349. The cubic root of 124991743 is about 499.9889904242.

The spelling of 124991743 in words is "one hundred twenty-four million, nine hundred ninety-one thousand, seven hundred forty-three".