124189613 has 2 divisors, whose sum is σ = 124189614. Its totient is φ = 124189612.

The previous prime is 124189609. The next prime is 124189661. The reversal of 124189613 is 316981421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65237929 + 58951684 = 8077^2 + 7678^2 .

It is a cyclic number.

It is not a de Polignac number, because 124189613 - 2² = 124189609 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124189603) 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, 62094806 + 62094807.

It is an arithmetic number, because the mean of its divisors is an integer number (62094807).

Almost surely, 2^124189613 is an apocalyptic number.

It is an amenable number.

124189613 is a deficient number, since it is larger than the sum of its proper divisors (1).

124189613 is an equidigital number, since it uses as much as digits as its factorization.

124189613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 35.

The square root of 124189613 is about 11144.0393484589. The cubic root of 124189613 is about 498.9171405237.

The spelling of 124189613 in words is "one hundred twenty-four million, one hundred eighty-nine thousand, six hundred thirteen".