12149860492225 has 9 divisors (see below), whose sum is σ = 15065848621513. Its totient is φ = 9719874451120.

The previous prime is 12149860492169. The next prime is 12149860492261. The reversal of 12149860492225 is 52229406894121.

The square root of 12149860492225 is 3485665.

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 6460376142529 + 5689484349696 = 2541727^2 + 2385264^2 .

It is not a de Polignac number, because 12149860492225 - 2¹¹ = 12149860490177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 17079759 + ... + 17776891.

Almost surely, 2^{12149860492225} is an apocalyptic number.

12149860492225 is the 3485665-th square number.

12149860492225 is the 1742833-rd centered octagonal number.

It is an amenable number.

12149860492225 is a deficient number, since it is larger than the sum of its proper divisors (2915988129288).

12149860492225 is an frugal number, since it uses more digits than its factorization.

12149860492225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394276 (or 697138 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 55.

The spelling of 12149860492225 in words is "twelve trillion, one hundred forty-nine billion, eight hundred sixty million, four hundred ninety-two thousand, two hundred twenty-five".