124412689 has 2 divisors, whose sum is σ = 124412690. Its totient is φ = 124412688.

The previous prime is 124412683. The next prime is 124412699. The reversal of 124412689 is 986214421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118810000 + 5602689 = 10900^2 + 2367^2 .

It is a cyclic number.

It is not a de Polignac number, because 124412689 - 2²¹ = 122315537 is a prime.

It is equal to p_7078654 and since 124412689 and 7078654 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (124412683) 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, 62206344 + 62206345.

It is an arithmetic number, because the mean of its divisors is an integer number (62206345).

Almost surely, 2^124412689 is an apocalyptic number.

It is an amenable number.

124412689 is a deficient number, since it is larger than the sum of its proper divisors (1).

124412689 is an equidigital number, since it uses as much as digits as its factorization.

124412689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 37.

The square root of 124412689 is about 11154.0436165545. The cubic root of 124412689 is about 499.2156890225.

The spelling of 124412689 in words is "one hundred twenty-four million, four hundred twelve thousand, six hundred eighty-nine".