4745315221 has 2 divisors, whose sum is σ = 4745315222. Its totient is φ = 4745315220.

The previous prime is 4745315207. The next prime is 4745315273. The reversal of 4745315221 is 1225135474.

4745315221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4745280996 + 34225 = 68886^2 + 185^2 .

It is a cyclic number.

It is not a de Polignac number, because 4745315221 - 2¹³ = 4745307029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4745315291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2372657610 + 2372657611.

It is an arithmetic number, because the mean of its divisors is an integer number (2372657611).

Almost surely, 2^4745315221 is an apocalyptic number.

It is an amenable number.

4745315221 is a deficient number, since it is larger than the sum of its proper divisors (1).

4745315221 is an equidigital number, since it uses as much as digits as its factorization.

4745315221 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33600, while the sum is 34.

The square root of 4745315221 is about 68886.2484172277. The cubic root of 4745315221 is about 1680.4348861162.

The spelling of 4745315221 in words is "four billion, seven hundred forty-five million, three hundred fifteen thousand, two hundred twenty-one".