720725141 has 2 divisors, whose sum is σ = 720725142. Its totient is φ = 720725140.

The previous prime is 720725051. The next prime is 720725191. The reversal of 720725141 is 141527027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 466992100 + 253733041 = 21610^2 + 15929^2 .

It is a cyclic number.

It is not a de Polignac number, because 720725141 - 2¹⁴ = 720708757 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720725191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360362570 + 360362571.

It is an arithmetic number, because the mean of its divisors is an integer number (360362571).

Almost surely, 2^720725141 is an apocalyptic number.

It is an amenable number.

720725141 is a deficient number, since it is larger than the sum of its proper divisors (1).

720725141 is an equidigital number, since it uses as much as digits as its factorization.

720725141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3920, while the sum is 29.

The square root of 720725141 is about 26846.3245342822. The cubic root of 720725141 is about 896.5817419020.

The spelling of 720725141 in words is "seven hundred twenty million, seven hundred twenty-five thousand, one hundred forty-one".