8201749243 has 2 divisors, whose sum is σ = 8201749244. Its totient is φ = 8201749242.

The previous prime is 8201749219. The next prime is 8201749261. The reversal of 8201749243 is 3429471028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8201749243 - 2⁵ = 8201749211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8201749196 and 8201749205.

It is not a weakly prime, because it can be changed into another prime (8201749273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4100874621 + 4100874622.

It is an arithmetic number, because the mean of its divisors is an integer number (4100874622).

Almost surely, 2^8201749243 is an apocalyptic number.

8201749243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8201749243 is an equidigital number, since it uses as much as digits as its factorization.

8201749243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 8201749243 is about 90563.5094450298. The cubic root of 8201749243 is about 2016.6730552841.

The spelling of 8201749243 in words is "eight billion, two hundred one million, seven hundred forty-nine thousand, two hundred forty-three".