11742973225 has 9 divisors (see below), whose sum is σ = 14561958693. Its totient is φ = 9393945120.

The previous prime is 11742973223. The next prime is 11742973241. The reversal of 11742973225 is 52237924711.

The square root of 11742973225 is 108365.

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 3050021529 + 8692951696 = 55227^2 + 93236^2 .

It is not a de Polignac number, because 11742973225 - 2¹ = 11742973223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11742973223) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 530989 + ... + 552661.

Almost surely, 2^11742973225 is an apocalyptic number.

11742973225 is the 108365-th square number.

11742973225 is the 54183-rd centered octagonal number.

It is an amenable number.

11742973225 is a deficient number, since it is larger than the sum of its proper divisors (2818985468).

11742973225 is an frugal number, since it uses more digits than its factorization.

11742973225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43356 (or 21678 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The spelling of 11742973225 in words is "eleven billion, seven hundred forty-two million, nine hundred seventy-three thousand, two hundred twenty-five".