104572684129 has 3 divisors (see below), whose sum is σ = 104573007507. Its totient is φ = 104572360752.

The previous prime is 104572684123. The next prime is 104572684133. The reversal of 104572684129 is 921486275401.

The square root of 104572684129 is 323377.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 43737448225 + 60835235904 = 209135^2 + 246648^2 .

It is not a de Polignac number, because 104572684129 - 2⁹ = 104572683617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (104572684123) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 161689 + ... + 485065.

It is an arithmetic number, because the mean of its divisors is an integer number (34857669169).

Almost surely, 2^104572684129 is an apocalyptic number.

104572684129 is the 323377-th square number.

104572684129 is the 161689-th centered octagonal number.

It is an amenable number.

104572684129 is a deficient number, since it is larger than the sum of its proper divisors (323378).

104572684129 is an frugal number, since it uses more digits than its factorization.

104572684129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646754 (or 323377 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 49.

Multiplying 104572684129 by its sum of digits (49), we get a square (5124061522321 = 2263639²).

The spelling of 104572684129 in words is "one hundred four billion, five hundred seventy-two million, six hundred eighty-four thousand, one hundred twenty-nine".