945520193 has 2 divisors, whose sum is σ = 945520194. Its totient is φ = 945520192.

The previous prime is 945520189. The next prime is 945520217. The reversal of 945520193 is 391025549.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 721029904 + 224490289 = 26852^2 + 14983^2 .

It is an emirp because it is prime and its reverse (391025549) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 945520193 - 2² = 945520189 is a prime.

It is not a weakly prime, because it can be changed into another prime (945520183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472760096 + 472760097.

It is an arithmetic number, because the mean of its divisors is an integer number (472760097).

Almost surely, 2^945520193 is an apocalyptic number.

It is an amenable number.

945520193 is a deficient number, since it is larger than the sum of its proper divisors (1).

945520193 is an equidigital number, since it uses as much as digits as its factorization.

945520193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48600, while the sum is 38.

The square root of 945520193 is about 30749.3120736058. The cubic root of 945520193 is about 981.4999220163.

The spelling of 945520193 in words is "nine hundred forty-five million, five hundred twenty thousand, one hundred ninety-three".