232170749281 has 9 divisors (see below), whose sum is σ = 233791752369. Its totient is φ = 230560918500.

The previous prime is 232170749267. The next prime is 232170749287. The reversal of 232170749281 is 182947071232.

The square root of 232170749281 is 481841.

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

It is not a de Polignac number, because 232170749281 - 2²⁷ = 232036531553 is a prime.

It is a super-2 number, since 2×232170749281² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (232170749287) 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, 72756396 + ... + 72759586.

Almost surely, 2^232170749281 is an apocalyptic number.

232170749281 is the 481841-st square number.

232170749281 is the 240921-st centered octagonal number.

It is an amenable number.

232170749281 is a deficient number, since it is larger than the sum of its proper divisors (1621003088).

232170749281 is an frugal number, since it uses more digits than its factorization.

232170749281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6684 (or 3342 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 46.

The spelling of 232170749281 in words is "two hundred thirty-two billion, one hundred seventy million, seven hundred forty-nine thousand, two hundred eighty-one".