193530305241289 has 9 divisors (see below), whose sum is σ = 193743343760941. Its totient is φ = 193317500765740.

The previous prime is 193530305241283. The next prime is 193530305241311. The reversal of 193530305241289 is 982142503035391.

It is a happy number.

The square root of 193530305241289 is 13911517.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 193530305241289 - 2⁹ = 193530305240777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (193530305241283) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13508075844 + ... + 13508090170.

Almost surely, 2^{193530305241289} is an apocalyptic number.

193530305241289 is the 13911517-th square number.

193530305241289 is the 6955759-th centered octagonal number.

It is an amenable number.

193530305241289 is a deficient number, since it is larger than the sum of its proper divisors (213038519652).

193530305241289 is an frugal number, since it uses more digits than its factorization.

193530305241289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30596 (or 15298 counting only the distinct ones).

The product of its (nonzero) digits is 6998400, while the sum is 55.

The spelling of 193530305241289 in words is "one hundred ninety-three trillion, five hundred thirty billion, three hundred five million, two hundred forty-one thousand, two hundred eighty-nine".