216051223 has 8 divisors (see below), whose sum is σ = 228740400. Its totient is φ = 203493888.

The previous prime is 216051217. The next prime is 216051229. The reversal of 216051223 is 322150612.

216051223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (216051217) and next prime (216051229).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 216051223 - 2¹³ = 216043031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 216051194 and 216051203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216051229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29578 + ... + 36151.

It is an arithmetic number, because the mean of its divisors is an integer number (28592550).

Almost surely, 2^216051223 is an apocalyptic number.

216051223 is a deficient number, since it is larger than the sum of its proper divisors (12689177).

216051223 is a wasteful number, since it uses less digits than its factorization.

216051223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65921.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 216051223 is about 14698.6809952458. The cubic root of 216051223 is about 600.0474249551.

The spelling of 216051223 in words is "two hundred sixteen million, fifty-one thousand, two hundred twenty-three".