217274132 has 6 divisors (see below), whose sum is σ = 380229738. Its totient is φ = 108637064.

The previous prime is 217274107. The next prime is 217274147. The reversal of 217274132 is 231472712.

It can be written as a sum of positive squares in only one way, i.e., 186759556 + 30514576 = 13666^2 + 5524^2 .

It is a junction number, because it is equal to n+sod(n) for n = 217274095 and 217274104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27159263 + ... + 27159270.

It is an arithmetic number, because the mean of its divisors is an integer number (63371623).

Almost surely, 2^217274132 is an apocalyptic number.

It is an amenable number.

217274132 is a deficient number, since it is larger than the sum of its proper divisors (162955606).

217274132 is a wasteful number, since it uses less digits than its factorization.

217274132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54318537 (or 54318535 counting only the distinct ones).

The product of its digits is 4704, while the sum is 29.

The square root of 217274132 is about 14740.2215722831. The cubic root of 217274132 is about 601.1774397332.

The spelling of 217274132 in words is "two hundred seventeen million, two hundred seventy-four thousand, one hundred thirty-two".