1345224134525 has 12 divisors (see below), whose sum is σ = 1668678689172. Its totient is φ = 1075791719040.

The previous prime is 1345224134521. The next prime is 1345224134533. The reversal of 1345224134525 is 5254314225431.

It can be written as a sum of positive squares in 6 ways, for example, as 41731544089 + 1303492590436 = 204283^2 + 1141706^2 .

It is not a de Polignac number, because 1345224134525 - 2² = 1345224134521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345224134521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9618902 + ... + 9757751.

It is an arithmetic number, because the mean of its divisors is an integer number (139056557431).

Almost surely, 2^{1345224134525} is an apocalyptic number.

It is an amenable number.

1345224134525 is a deficient number, since it is larger than the sum of its proper divisors (323454554647).

1345224134525 is a wasteful number, since it uses less digits than its factorization.

1345224134525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19379440 (or 19379435 counting only the distinct ones).

The product of its digits is 576000, while the sum is 41.

Adding to 1345224134525 its reverse (5254314225431), we get a palindrome (6599538359956).

The spelling of 1345224134525 in words is "one trillion, three hundred forty-five billion, two hundred twenty-four million, one hundred thirty-four thousand, five hundred twenty-five".