124021253609289 has 15 divisors (see below), whose sum is σ = 185266466843997. Its totient is φ = 82680768920628.

The previous prime is 124021253609237. The next prime is 124021253609311. The reversal of 124021253609289 is 982906352120421.

The square root of 124021253609289 is 11136483.

It is a perfect power (a square), and thus also a powerful number.

124021253609289 is a `hidden beast` number, since 1 + 2 + 4 + 0 + 2 + 1 + 2 + 5 + 3 + 609 + 28 + 9 = 666.

It is not a de Polignac number, because 124021253609289 - 2²⁵ = 124021220054857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (124021253609219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 99609654 + ... + 100847040.

Almost surely, 2^{124021253609289} is an apocalyptic number.

124021253609289 is the 11136483-rd square number.

124021253609289 is the 5568242-nd centered octagonal number.

It is an amenable number.

124021253609289 is a deficient number, since it is larger than the sum of its proper divisors (61245213234708).

124021253609289 is an frugal number, since it uses more digits than its factorization.

124021253609289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474786 (or 1237390 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 124021253609289 in words is "one hundred twenty-four trillion, twenty-one billion, two hundred fifty-three million, six hundred nine thousand, two hundred eighty-nine".