1296360025 has 27 divisors (see below), whose sum is σ = 1701032031. Its totient is φ = 979912080.

The previous prime is 1296360011. The next prime is 1296360029. The reversal of 1296360025 is 5200636921.

The square root of 1296360025 is 36005.

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

It can be written as a sum of positive squares in only one way, i.e., 466689609 + 829670416 = 21603^2 + 28804^2 .

It is not a de Polignac number, because 1296360025 - 2¹¹ = 1296357977 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1296360029) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3420286 + ... + 3420664.

Almost surely, 2^1296360025 is an apocalyptic number.

1296360025 is the 36005-th square number.

1296360025 is the 18003-rd centered octagonal number.

It is an amenable number.

1296360025 is a deficient number, since it is larger than the sum of its proper divisors (404672006).

1296360025 is an frugal number, since it uses more digits than its factorization.

1296360025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 806 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

The cubic root of 1296360025 is about 1090.3733045066.

Adding to 1296360025 its reverse (5200636921), we get a palindrome (6496996946).

The spelling of 1296360025 in words is "one billion, two hundred ninety-six million, three hundred sixty thousand, twenty-five".