2109364093225 has 9 divisors (see below), whose sum is σ = 2615620480293. Its totient is φ = 1687485465120.

The previous prime is 2109364093159. The next prime is 2109364093229. The reversal of 2109364093225 is 5223904639012.

The square root of 2109364093225 is 1452365.

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

It can be written as a sum of positive squares in 4 ways, for example, as 487724847129 + 1621639246096 = 698373^2 + 1273436^2 .

It is not a de Polignac number, because 2109364093225 - 2⁷ = 2109364093097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2109364093229) 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 8 ways as a sum of consecutive naturals, for example, 7116589 + ... + 7407061.

Almost surely, 2^{2109364093225} is an apocalyptic number.

2109364093225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2109364093225 is the 1452365-th square number.

2109364093225 is the 726183-rd centered octagonal number.

It is an amenable number.

2109364093225 is a deficient number, since it is larger than the sum of its proper divisors (506256387068).

2109364093225 is an frugal number, since it uses more digits than its factorization.

2109364093225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580956 (or 290478 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 46.

The spelling of 2109364093225 in words is "two trillion, one hundred nine billion, three hundred sixty-four million, ninety-three thousand, two hundred twenty-five".