193268134172281 has 27 divisors (see below), whose sum is σ = 237279904147269. Its totient is φ = 156938036097528.

The previous prime is 193268134172251. The next prime is 193268134172287. The reversal of 193268134172281 is 182271431862391.

The square root of 193268134172281 is 13902091.

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

It is not a de Polignac number, because 193268134172281 - 2²⁵ = 193268100617849 is a prime.

It is a super-2 number, since 2×193268134172281² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (193268134172287) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1848925840 + ... + 1849030366.

It is an arithmetic number, because the mean of its divisors is an integer number (8788144598047).

Almost surely, 2^{193268134172281} is an apocalyptic number.

193268134172281 is the 13902091-st square number.

193268134172281 is the 6951046-th centered octagonal number.

It is an amenable number.

193268134172281 is a deficient number, since it is larger than the sum of its proper divisors (44011769974988).

193268134172281 is an frugal number, since it uses more digits than its factorization.

193268134172281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209106 (or 104553 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The spelling of 193268134172281 in words is "one hundred ninety-three trillion, two hundred sixty-eight billion, one hundred thirty-four million, one hundred seventy-two thousand, two hundred eighty-one".