719340161 has 2 divisors, whose sum is σ = 719340162. Its totient is φ = 719340160.

The previous prime is 719340131. The next prime is 719340169. The reversal of 719340161 is 161043917.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 719044225 + 295936 = 26815^2 + 544^2 .

It is an emirp because it is prime and its reverse (161043917) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-719340161 is a prime.

It is not a weakly prime, because it can be changed into another prime (719340169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359670080 + 359670081.

It is an arithmetic number, because the mean of its divisors is an integer number (359670081).

Almost surely, 2^719340161 is an apocalyptic number.

It is an amenable number.

719340161 is a deficient number, since it is larger than the sum of its proper divisors (1).

719340161 is an equidigital number, since it uses as much as digits as its factorization.

719340161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 719340161 is about 26820.5175378851. The cubic root of 719340161 is about 896.0070688118.

The spelling of 719340161 in words is "seven hundred nineteen million, three hundred forty thousand, one hundred sixty-one".