1172740994225 has 12 divisors (see below), whose sum is σ = 1454231566080. Its totient is φ = 938171677200.

The previous prime is 1172740994207. The next prime is 1172740994251. The reversal of 1172740994225 is 5224990472711.

It is a happy number.

It is not a de Polignac number, because 1172740994225 - 2¹⁰ = 1172740993201 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 657056 + ... + 1666494.

It is an arithmetic number, because the mean of its divisors is an integer number (121185963840).

Almost surely, 2^{1172740994225} is an apocalyptic number.

It is an amenable number.

1172740994225 is a deficient number, since it is larger than the sum of its proper divisors (281490571855).

1172740994225 is a wasteful number, since it uses less digits than its factorization.

1172740994225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055920 (or 1055915 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 53.

The spelling of 1172740994225 in words is "one trillion, one hundred seventy-two billion, seven hundred forty million, nine hundred ninety-four thousand, two hundred twenty-five".