1723413149 has 2 divisors, whose sum is σ = 1723413150. Its totient is φ = 1723413148.

The previous prime is 1723413103. The next prime is 1723413157. The reversal of 1723413149 is 9413143271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1477864249 + 245548900 = 38443^2 + 15670^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1723413149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1723413049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 861706574 + 861706575.

It is an arithmetic number, because the mean of its divisors is an integer number (861706575).

Almost surely, 2^1723413149 is an apocalyptic number.

It is an amenable number.

1723413149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1723413149 is an equidigital number, since it uses as much as digits as its factorization.

1723413149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 1723413149 is about 41514.0114780540. The cubic root of 1723413149 is about 1198.9372880825.

The spelling of 1723413149 in words is "one billion, seven hundred twenty-three million, four hundred thirteen thousand, one hundred forty-nine".