1223174134145 has 8 divisors (see below), whose sum is σ = 1473899456040. Its totient is φ = 974478977280.

The previous prime is 1223174134141. The next prime is 1223174134177. The reversal of 1223174134145 is 5414314713221.

It can be written as a sum of positive squares in 4 ways, for example, as 380354659441 + 842819474704 = 616729^2 + 918052^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223174134145 - 2² = 1223174134141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1223174134099 and 1223174134108.

It is not an unprimeable number, because it can be changed into a prime (1223174134141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507539930 + ... + 507542339.

It is an arithmetic number, because the mean of its divisors is an integer number (184237432005).

Almost surely, 2^{1223174134145} is an apocalyptic number.

It is an amenable number.

1223174134145 is a deficient number, since it is larger than the sum of its proper divisors (250725321895).

1223174134145 is a wasteful number, since it uses less digits than its factorization.

1223174134145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015082515.

The product of its digits is 80640, while the sum is 38.

Adding to 1223174134145 its reverse (5414314713221), we get a palindrome (6637488847366).

The spelling of 1223174134145 in words is "one trillion, two hundred twenty-three billion, one hundred seventy-four million, one hundred thirty-four thousand, one hundred forty-five".