183111247225 has 45 divisors (see below), whose sum is σ = 241315239515. Its totient is φ = 137822863200.

The previous prime is 183111247223. The next prime is 183111247309. The reversal of 183111247225 is 522742111381.

The square root of 183111247225 is 427915.

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

It can be written as a sum of positive squares in 7 ways, for example, as 130675743081 + 52435504144 = 361491^2 + 228988^2 .

It is not a de Polignac number, because 183111247225 - 2¹ = 183111247223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (183111247223) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3001823695 + ... + 3001823755.

Almost surely, 2^183111247225 is an apocalyptic number.

183111247225 is the 427915-th square number.

183111247225 is the 213958-th centered octagonal number.

It is an amenable number.

183111247225 is a deficient number, since it is larger than the sum of its proper divisors (58203992290).

183111247225 is an frugal number, since it uses more digits than its factorization.

183111247225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300 (or 89 counting only the distinct ones).

The product of its digits is 26880, while the sum is 37.

It can be divided in two parts, 183111 and 247225, that added together give a square (430336 = 656²).

The spelling of 183111247225 in words is "one hundred eighty-three billion, one hundred eleven million, two hundred forty-seven thousand, two hundred twenty-five".