1705011745 has 4 divisors (see below), whose sum is σ = 2046014100. Its totient is φ = 1364009392.

The previous prime is 1705011743. The next prime is 1705011757. The reversal of 1705011745 is 5471105071.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5471105071 = 157 ⋅34847803.

It can be written as a sum of positive squares in 2 ways, for example, as 773785489 + 931226256 = 27817^2 + 30516^2 .

It is a cyclic number.

It is not a de Polignac number, because 1705011745 - 2¹ = 1705011743 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (1705011743) 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, 170501170 + ... + 170501179.

It is an arithmetic number, because the mean of its divisors is an integer number (511503525).

Almost surely, 2^1705011745 is an apocalyptic number.

It is an amenable number.

1705011745 is a deficient number, since it is larger than the sum of its proper divisors (341002355).

1705011745 is an equidigital number, since it uses as much as digits as its factorization.

1705011745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341002354.

The product of its (nonzero) digits is 4900, while the sum is 31.

The square root of 1705011745 is about 41291.7878639325. The cubic root of 1705011745 is about 1194.6548713592.

The spelling of 1705011745 in words is "one billion, seven hundred five million, eleven thousand, seven hundred forty-five".