8010139243 has 2 divisors, whose sum is σ = 8010139244. Its totient is φ = 8010139242.

The previous prime is 8010139147. The next prime is 8010139279. The reversal of 8010139243 is 3429310108.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8010139243 - 2²⁹ = 7473268331 is a prime.

It is a super-2 number, since 2×8010139243² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8010139283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4005069621 + 4005069622.

It is an arithmetic number, because the mean of its divisors is an integer number (4005069622).

Almost surely, 2^8010139243 is an apocalyptic number.

8010139243 is a deficient number, since it is larger than the sum of its proper divisors (1).

8010139243 is an equidigital number, since it uses as much as digits as its factorization.

8010139243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 8010139243 is about 89499.3812436712. The cubic root of 8010139243 is about 2000.8445802086.

The spelling of 8010139243 in words is "eight billion, ten million, one hundred thirty-nine thousand, two hundred forty-three".