17023389135481 has 3 divisors (see below), whose sum is σ = 17023393261423. Its totient is φ = 17023385009540.

The previous prime is 17023389135469. The next prime is 17023389135497. The reversal of 17023389135481 is 18453198332071.

The square root of 17023389135481 is 4125941.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 16940295307881 + 83093827600 = 4115859^2 + 288260^2 .

It is a de Polignac number, because none of the positive numbers 2^k-17023389135481 is a prime.

It is a super-2 number, since 2×17023389135481² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (17023389135451) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2062971 + ... + 6188911.

Almost surely, 2^{17023389135481} is an apocalyptic number.

17023389135481 is the 4125941-st square number.

17023389135481 is the 2062971-st centered octagonal number.

It is an amenable number.

17023389135481 is a deficient number, since it is larger than the sum of its proper divisors (4125942).

17023389135481 is an frugal number, since it uses more digits than its factorization.

17023389135481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8251882 (or 4125941 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 55.

The spelling of 17023389135481 in words is "seventeen trillion, twenty-three billion, three hundred eighty-nine million, one hundred thirty-five thousand, four hundred eighty-one".