216154472 has 16 divisors (see below), whose sum is σ = 405448740. Its totient is φ = 108034816.

The previous prime is 216154453. The next prime is 216154513. The reversal of 216154472 is 274451612.

It can be written as a sum of positive squares in 2 ways, for example, as 202948516 + 13205956 = 14246^2 + 3634^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30848 + ... + 37200.

Almost surely, 2^216154472 is an apocalyptic number.

It is an amenable number.

216154472 is a deficient number, since it is larger than the sum of its proper divisors (189294268).

216154472 is a wasteful number, since it uses less digits than its factorization.

216154472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10612 (or 10608 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 216154472 is about 14702.1927616257. The cubic root of 216154472 is about 600.1429955474.

The spelling of 216154472 in words is "two hundred sixteen million, one hundred fifty-four thousand, four hundred seventy-two".