1197963085225 has 27 divisors (see below), whose sum is σ = 1491846317157. Its totient is φ = 954276982080.

The previous prime is 1197963085223. The next prime is 1197963085229. The reversal of 1197963085225 is 5225803697911.

The square root of 1197963085225 is 1094515.

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 83426812569 + 1114536272656 = 288837^2 + 1055716^2 .

It is not a de Polignac number, because 1197963085225 - 2¹ = 1197963085223 is a prime.

It is a super-2 number, since 2×1197963085225² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1197963085225.

It is not an unprimeable number, because it can be changed into a prime (1197963085223) 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, 2500966536 + ... + 2500967014.

Almost surely, 2^{1197963085225} is an apocalyptic number.

1197963085225 is the 1094515-th square number.

1197963085225 is the 547258-th centered octagonal number.

It is an amenable number.

1197963085225 is a deficient number, since it is larger than the sum of its proper divisors (293883231932).

1197963085225 is an frugal number, since it uses more digits than its factorization.

1197963085225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882 (or 941 counting only the distinct ones).

The product of its (nonzero) digits is 8164800, while the sum is 58.

The spelling of 1197963085225 in words is "one trillion, one hundred ninety-seven billion, nine hundred sixty-three million, eighty-five thousand, two hundred twenty-five".