124780387 has 2 divisors, whose sum is σ = 124780388. Its totient is φ = 124780386.

The previous prime is 124780379. The next prime is 124780399. The reversal of 124780387 is 783087421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 124780387 - 2³ = 124780379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (124780787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62390193 + 62390194.

It is an arithmetic number, because the mean of its divisors is an integer number (62390194).

Almost surely, 2^124780387 is an apocalyptic number.

124780387 is a deficient number, since it is larger than the sum of its proper divisors (1).

124780387 is an equidigital number, since it uses as much as digits as its factorization.

124780387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 124780387 is about 11170.5141779598. The cubic root of 124780387 is about 499.7070110151.

The spelling of 124780387 in words is "one hundred twenty-four million, seven hundred eighty thousand, three hundred eighty-seven".