124814145689 has 4 divisors (see below), whose sum is σ = 124846814820. Its totient is φ = 124781476560.

The previous prime is 124814145683. The next prime is 124814145713. The reversal of 124814145689 is 986541418421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 986541418421 = 13 ⋅75887801417.

It can be written as a sum of positive squares in 2 ways, for example, as 115188966025 + 9625179664 = 339395^2 + 98108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124814145689 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 124814145689.

It is not an unprimeable number, because it can be changed into a prime (124814145683) 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 in 3 ways as a sum of consecutive naturals, for example, 16328834 + ... + 16336475.

It is an arithmetic number, because the mean of its divisors is an integer number (31211703705).

Almost surely, 2^124814145689 is an apocalyptic number.

It is an amenable number.

124814145689 is a deficient number, since it is larger than the sum of its proper divisors (32669131).

124814145689 is an equidigital number, since it uses as much as digits as its factorization.

124814145689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32669130.

The product of its digits is 2211840, while the sum is 53.

The spelling of 124814145689 in words is "one hundred twenty-four billion, eight hundred fourteen million, one hundred forty-five thousand, six hundred eighty-nine".