124959689 has 2 divisors, whose sum is σ = 124959690. Its totient is φ = 124959688.

The previous prime is 124959647. The next prime is 124959701. The reversal of 124959689 is 986959421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71961289 + 52998400 = 8483^2 + 7280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124959689 is a prime.

It is a super-2 number, since 2×124959689² = 31229847749953442, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 124959689.

It is not a weakly prime, because it can be changed into another prime (124959089) 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, 62479844 + 62479845.

It is an arithmetic number, because the mean of its divisors is an integer number (62479845).

Almost surely, 2^124959689 is an apocalyptic number.

It is an amenable number.

124959689 is a deficient number, since it is larger than the sum of its proper divisors (1).

124959689 is an equidigital number, since it uses as much as digits as its factorization.

124959689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 53.

The square root of 124959689 is about 11178.5369794084. The cubic root of 124959689 is about 499.9462462213.

The spelling of 124959689 in words is "one hundred twenty-four million, nine hundred fifty-nine thousand, six hundred eighty-nine".