1745517493 has 2 divisors, whose sum is σ = 1745517494. Its totient is φ = 1745517492.

The previous prime is 1745517461. The next prime is 1745517523. The reversal of 1745517493 is 3947155471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1708830244 + 36687249 = 41338^2 + 6057^2 .

It is a cyclic number.

It is not a de Polignac number, because 1745517493 - 2⁵ = 1745517461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1745517793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872758746 + 872758747.

It is an arithmetic number, because the mean of its divisors is an integer number (872758747).

Almost surely, 2^1745517493 is an apocalyptic number.

It is an amenable number.

1745517493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745517493 is an equidigital number, since it uses as much as digits as its factorization.

1745517493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 1745517493 is about 41779.3907686553. The cubic root of 1745517493 is about 1204.0413495308.

The spelling of 1745517493 in words is "one billion, seven hundred forty-five million, five hundred seventeen thousand, four hundred ninety-three".