1725341036161 has 4 divisors (see below), whose sum is σ = 1725343685892. Its totient is φ = 1725338386432.

The previous prime is 1725341036113. The next prime is 1725341036197. The reversal of 1725341036161 is 1616301435271.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1350116183025 + 375224853136 = 1161945^2 + 612556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1725341036161 - 2¹¹ = 1725341034113 is a prime.

It is a super-2 number, since 2×1725341036161² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1725341036261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402945 + ... + 1900801.

It is an arithmetic number, because the mean of its divisors is an integer number (431335921473).

Almost surely, 2^{1725341036161} is an apocalyptic number.

It is an amenable number.

1725341036161 is a deficient number, since it is larger than the sum of its proper divisors (2649731).

1725341036161 is a wasteful number, since it uses less digits than its factorization.

1725341036161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2649730.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 1725341036161 in words is "one trillion, seven hundred twenty-five billion, three hundred forty-one million, thirty-six thousand, one hundred sixty-one".