216393148 has 6 divisors (see below), whose sum is σ = 378688016. Its totient is φ = 108196572.

The previous prime is 216393139. The next prime is 216393173. The reversal of 216393148 is 841393612.

It is a super-3 number, since 3×216393148³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 27049140 + ... + 27049147.

Almost surely, 2^216393148 is an apocalyptic number.

It is an amenable number.

216393148 is a deficient number, since it is larger than the sum of its proper divisors (162294868).

216393148 is a wasteful number, since it uses less digits than its factorization.

216393148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54098291 (or 54098289 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 216393148 is about 14710.3075426722. The cubic root of 216393148 is about 600.3638052909.

The spelling of 216393148 in words is "two hundred sixteen million, three hundred ninety-three thousand, one hundred forty-eight".