193343641 has 2 divisors, whose sum is σ = 193343642. Its totient is φ = 193343640.

The previous prime is 193343627. The next prime is 193343663. The reversal of 193343641 is 146343391.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162307600 + 31036041 = 12740^2 + 5571^2 .

It is a cyclic number.

It is not a de Polignac number, because 193343641 - 2¹¹ = 193341593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 193343597 and 193343606.

It is not a weakly prime, because it can be changed into another prime (193343671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96671820 + 96671821.

It is an arithmetic number, because the mean of its divisors is an integer number (96671821).

Almost surely, 2^193343641 is an apocalyptic number.

It is an amenable number.

193343641 is a deficient number, since it is larger than the sum of its proper divisors (1).

193343641 is an equidigital number, since it uses as much as digits as its factorization.

193343641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 34.

The square root of 193343641 is about 13904.8063992276. The cubic root of 193343641 is about 578.2424410879.

The spelling of 193343641 in words is "one hundred ninety-three million, three hundred forty-three thousand, six hundred forty-one".