1373225532545 has 16 divisors (see below), whose sum is σ = 1670523052752. Its totient is φ = 1083480238080.

The previous prime is 1373225532527. The next prime is 1373225532599. The reversal of 1373225532545 is 5452355223731.

It can be written as a sum of positive squares in 8 ways, for example, as 12587269249 + 1360638263296 = 112193^2 + 1166464^2 .

It is not a de Polignac number, because 1373225532545 - 2¹⁴ = 1373225516161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1373225532545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8899955 + ... + 9052935.

It is an arithmetic number, because the mean of its divisors is an integer number (104407690797).

Almost surely, 2^{1373225532545} is an apocalyptic number.

It is an amenable number.

1373225532545 is a deficient number, since it is larger than the sum of its proper divisors (297297520207).

1373225532545 is a wasteful number, since it uses less digits than its factorization.

1373225532545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177652.

The product of its digits is 3780000, while the sum is 47.

The spelling of 1373225532545 in words is "one trillion, three hundred seventy-three billion, two hundred twenty-five million, five hundred thirty-two thousand, five hundred forty-five".