1743385145 has 4 divisors (see below), whose sum is σ = 2092062180. Its totient is φ = 1394708112.

The previous prime is 1743385097. The next prime is 1743385151. The reversal of 1743385145 is 5415833471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5415833471 = 27691 ⋅195581.

It can be written as a sum of positive squares in 2 ways, for example, as 1243549696 + 499835449 = 35264^2 + 22357^2 .

It is a cyclic number.

It is not a de Polignac number, because 1743385145 - 2¹⁶ = 1743319609 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174338510 + ... + 174338519.

It is an arithmetic number, because the mean of its divisors is an integer number (523015545).

Almost surely, 2^1743385145 is an apocalyptic number.

It is an amenable number.

1743385145 is a deficient number, since it is larger than the sum of its proper divisors (348677035).

1743385145 is an equidigital number, since it uses as much as digits as its factorization.

1743385145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348677034.

The product of its digits is 201600, while the sum is 41.

The square root of 1743385145 is about 41753.8638331832. The cubic root of 1743385145 is about 1203.5508586295.

The spelling of 1743385145 in words is "one billion, seven hundred forty-three million, three hundred eighty-five thousand, one hundred forty-five".