720163043 has 2 divisors, whose sum is σ = 720163044. Its totient is φ = 720163042.

The previous prime is 720162983. The next prime is 720163049. The reversal of 720163043 is 340361027.

It is a strong prime.

It is an emirp because it is prime and its reverse (340361027) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 720163043 - 2¹⁴ = 720146659 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (720163049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360081521 + 360081522.

It is an arithmetic number, because the mean of its divisors is an integer number (360081522).

Almost surely, 2^720163043 is an apocalyptic number.

720163043 is a deficient number, since it is larger than the sum of its proper divisors (1).

720163043 is an equidigital number, since it uses as much as digits as its factorization.

720163043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 720163043 is about 26835.8536849492. The cubic root of 720163043 is about 896.3485980641.

The spelling of 720163043 in words is "seven hundred twenty million, one hundred sixty-three thousand, forty-three".