124940779 has 2 divisors, whose sum is σ = 124940780. Its totient is φ = 124940778.

The previous prime is 124940771. The next prime is 124940831. The reversal of 124940779 is 977049421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124940779 - 2³ = 124940771 is a prime.

It is a super-2 number, since 2×124940779² = 31220396514253682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (124940771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62470389 + 62470390.

It is an arithmetic number, because the mean of its divisors is an integer number (62470390).

Almost surely, 2^124940779 is an apocalyptic number.

124940779 is a deficient number, since it is larger than the sum of its proper divisors (1).

124940779 is an equidigital number, since it uses as much as digits as its factorization.

124940779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 124940779 is about 11177.6911301037. The cubic root of 124940779 is about 499.9210261936.

The spelling of 124940779 in words is "one hundred twenty-four million, nine hundred forty thousand, seven hundred seventy-nine".