124713109 has 2 divisors, whose sum is σ = 124713110. Its totient is φ = 124713108.

The previous prime is 124713091. The next prime is 124713151. The reversal of 124713109 is 901317421.

Together with previous prime (124713091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115992900 + 8720209 = 10770^2 + 2953^2 .

It is a cyclic number.

It is not a de Polignac number, because 124713109 - 2¹³ = 124704917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124713209) 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, 62356554 + 62356555.

It is an arithmetic number, because the mean of its divisors is an integer number (62356555).

Almost surely, 2^124713109 is an apocalyptic number.

It is an amenable number.

124713109 is a deficient number, since it is larger than the sum of its proper divisors (1).

124713109 is an equidigital number, since it uses as much as digits as its factorization.

124713109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 124713109 is about 11167.5023617638. The cubic root of 124713109 is about 499.6171856478.

The spelling of 124713109 in words is "one hundred twenty-four million, seven hundred thirteen thousand, one hundred nine".