217003132 has 24 divisors (see below), whose sum is σ = 384048000. Its totient is φ = 107282736.

The previous prime is 217003109. The next prime is 217003133. The reversal of 217003132 is 231300712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217003133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141723 + ... + 143245.

It is an arithmetic number, because the mean of its divisors is an integer number (16002000).

Almost surely, 2^217003132 is an apocalyptic number.

It is an amenable number.

217003132 is a deficient number, since it is larger than the sum of its proper divisors (167044868).

217003132 is a wasteful number, since it uses less digits than its factorization.

217003132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905 (or 1903 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 217003132 is about 14731.0261692796. The cubic root of 217003132 is about 600.9273917616.

Adding to 217003132 its reverse (231300712), we get a palindrome (448303844).

It can be divided in two parts, 21 and 7003132, that added together give a triangular number (7003153 = T₃₇₄₂).

The spelling of 217003132 in words is "two hundred seventeen million, three thousand, one hundred thirty-two".