1208449497025 has 27 divisors (see below), whose sum is σ = 1534436218089. Its totient is φ = 944092134720.

The previous prime is 1208449496999. The next prime is 1208449497049. The reversal of 1208449497025 is 5207949448021.

The square root of 1208449497025 is 1099295.

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 656085420081 + 552364076944 = 809991^2 + 743212^2 .

It is not a de Polignac number, because 1208449497025 - 2¹¹ = 1208449494977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 26 ways as a sum of consecutive naturals, for example, 236345869 + ... + 236350981.

Almost surely, 2^{1208449497025} is an apocalyptic number.

1208449497025 is the 1099295-th square number.

1208449497025 is the 549648-th centered octagonal number.

It is an amenable number.

1208449497025 is a deficient number, since it is larger than the sum of its proper divisors (325986721064).

1208449497025 is an frugal number, since it uses more digits than its factorization.

1208449497025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10322 (or 5161 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 1208449497025 in words is "one trillion, two hundred eight billion, four hundred forty-nine million, four hundred ninety-seven thousand, twenty-five".