216159292 has 6 divisors (see below), whose sum is σ = 378278768. Its totient is φ = 108079644.

The previous prime is 216159271. The next prime is 216159299. The reversal of 216159292 is 292951612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216159299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27019908 + ... + 27019915.

Almost surely, 2^216159292 is an apocalyptic number.

It is an amenable number.

216159292 is a deficient number, since it is larger than the sum of its proper divisors (162119476).

216159292 is a wasteful number, since it uses less digits than its factorization.

216159292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54039827 (or 54039825 counting only the distinct ones).

The product of its digits is 19440, while the sum is 37.

The square root of 216159292 is about 14702.3566818385. The cubic root of 216159292 is about 600.1474563507.

The spelling of 216159292 in words is "two hundred sixteen million, one hundred fifty-nine thousand, two hundred ninety-two".