1745690513 has 6 divisors (see below), whose sum is σ = 2030701266. Its totient is φ = 1496306112.

The previous prime is 1745690491. The next prime is 1745690539. The reversal of 1745690513 is 3150965471.

It can be written as a sum of positive squares in only one way, i.e., 1445292289 + 300398224 = 38017^2 + 17332^2 .

It is not a de Polignac number, because 1745690513 - 2⁶ = 1745690449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1745690563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17813120 + ... + 17813217.

It is an arithmetic number, because the mean of its divisors is an integer number (338450211).

Almost surely, 2^1745690513 is an apocalyptic number.

It is an amenable number.

1745690513 is a deficient number, since it is larger than the sum of its proper divisors (285010753).

1745690513 is an equidigital number, since it uses as much as digits as its factorization.

1745690513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35626351 (or 35626344 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 1745690513 is about 41781.4613554864. The cubic root of 1745690513 is about 1204.0811307327.

The spelling of 1745690513 in words is "one billion, seven hundred forty-five million, six hundred ninety thousand, five hundred thirteen".