124286220547129 has 9 divisors (see below), whose sum is σ = 124364140743717. Its totient is φ = 124208349161724.

The previous prime is 124286220547117. The next prime is 124286220547157. The reversal of 124286220547129 is 921745022682421.

The square root of 124286220547129 is 11148373.

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

It is not a de Polignac number, because 124286220547129 - 2²¹ = 124286218449977 is a prime.

It is a super-2 number, since 2×124286220547129² (a number of 29 digits) contains 22 as substring.

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 124286220547129.

It is not an unprimeable number, because it can be changed into a prime (124286220547729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 27503033932 + ... + 27503038450.

It is an arithmetic number, because the mean of its divisors is an integer number (13818237860413).

Almost surely, 2^{124286220547129} is an apocalyptic number.

124286220547129 is the 11148373-rd square number.

124286220547129 is the 5574187-th centered octagonal number.

It is an amenable number.

124286220547129 is a deficient number, since it is larger than the sum of its proper divisors (77920196588).

124286220547129 is an frugal number, since it uses more digits than its factorization.

124286220547129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13972 (or 6986 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 124286220547129 in words is "one hundred twenty-four trillion, two hundred eighty-six billion, two hundred twenty million, five hundred forty-seven thousand, one hundred twenty-nine".