124012771 has 2 divisors, whose sum is σ = 124012772. Its totient is φ = 124012770.

The previous prime is 124012751. The next prime is 124012781. The reversal of 124012771 is 177210421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 124012771 - 2¹¹ = 124010723 is a prime.

It is not a weakly prime, because it can be changed into another prime (124012751) 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, 62006385 + 62006386.

It is an arithmetic number, because the mean of its divisors is an integer number (62006386).

Almost surely, 2^124012771 is an apocalyptic number.

124012771 is a deficient number, since it is larger than the sum of its proper divisors (1).

124012771 is an equidigital number, since it uses as much as digits as its factorization.

124012771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 124012771 is about 11136.1021457241. The cubic root of 124012771 is about 498.6802140620.

The spelling of 124012771 in words is "one hundred twenty-four million, twelve thousand, seven hundred seventy-one".