1745210849 has 4 divisors (see below), whose sum is σ = 1750716564. Its totient is φ = 1739705136.

The previous prime is 1745210801. The next prime is 1745210851. The reversal of 1745210849 is 9480125471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9480125471 = 78623 ⋅120577.

It can be written as a sum of positive squares in 2 ways, for example, as 1049306449 + 695904400 = 32393^2 + 26380^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745210849 - 2²⁸ = 1476775393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1745219849) 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, 2752382 + ... + 2753015.

It is an arithmetic number, because the mean of its divisors is an integer number (437679141).

Almost surely, 2^1745210849 is an apocalyptic number.

It is an amenable number.

1745210849 is a deficient number, since it is larger than the sum of its proper divisors (5505715).

1745210849 is an equidigital number, since it uses as much as digits as its factorization.

1745210849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5505714.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1745210849 is about 41775.7208076653. The cubic root of 1745210849 is about 1203.9708386976.

The spelling of 1745210849 in words is "one billion, seven hundred forty-five million, two hundred ten thousand, eight hundred forty-nine".