132217281 has 12 divisors (see below), whose sum is σ = 218263552. Its totient is φ = 75552696.

The previous prime is 132217273. The next prime is 132217291. The reversal of 132217281 is 182712231.

It is not a de Polignac number, because 132217281 - 2³ = 132217273 is a prime.

It is a super-2 number, since 2×132217281² = 34962818790065922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (132217291) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1049281 + ... + 1049406.

Almost surely, 2^132217281 is an apocalyptic number.

It is an amenable number.

132217281 is a deficient number, since it is larger than the sum of its proper divisors (86046271).

132217281 is a wasteful number, since it uses less digits than its factorization.

132217281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098700 (or 2098697 counting only the distinct ones).

The product of its digits is 1344, while the sum is 27.

The square root of 132217281 is about 11498.5773467851. The cubic root of 132217281 is about 509.4435568884.

It can be divided in two parts, 13221 and 7281, that added together give a palindrome (20502).

The spelling of 132217281 in words is "one hundred thirty-two million, two hundred seventeen thousand, two hundred eighty-one".