124910869 has 2 divisors, whose sum is σ = 124910870. Its totient is φ = 124910868.

The previous prime is 124910857. The next prime is 124910879. The reversal of 124910869 is 968019421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115820644 + 9090225 = 10762^2 + 3015^2 .

It is an emirp because it is prime and its reverse (968019421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 124910869 - 2⁷ = 124910741 is a prime.

It is a super-2 number, since 2×124910869² = 31205450388670322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (124910809) 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, 62455434 + 62455435.

It is an arithmetic number, because the mean of its divisors is an integer number (62455435).

Almost surely, 2^124910869 is an apocalyptic number.

It is an amenable number.

124910869 is a deficient number, since it is larger than the sum of its proper divisors (1).

124910869 is an equidigital number, since it uses as much as digits as its factorization.

124910869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 124910869 is about 11176.3531171845. The cubic root of 124910869 is about 499.8811304089.

The spelling of 124910869 in words is "one hundred twenty-four million, nine hundred ten thousand, eight hundred sixty-nine".