1745745613 has 4 divisors (see below), whose sum is σ = 1746692640. Its totient is φ = 1744798588.

The previous prime is 1745745587. The next prime is 1745745629. The reversal of 1745745613 is 3165475471.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1745745613 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 1745745613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1745742613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470743 + ... + 474436.

It is an arithmetic number, because the mean of its divisors is an integer number (436673160).

Almost surely, 2^1745745613 is an apocalyptic number.

It is an amenable number.

1745745613 is a deficient number, since it is larger than the sum of its proper divisors (947027).

1745745613 is an equidigital number, since it uses as much as digits as its factorization.

1745745613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947026.

The product of its digits is 352800, while the sum is 43.

The square root of 1745745613 is about 41782.1207336344. The cubic root of 1745745613 is about 1204.0937989141.

The spelling of 1745745613 in words is "one billion, seven hundred forty-five million, seven hundred forty-five thousand, six hundred thirteen".