216054743 has 4 divisors (see below), whose sum is σ = 216288240. Its totient is φ = 215821248.

The previous prime is 216054739. The next prime is 216054767. The reversal of 216054743 is 347450612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 216054743 - 2² = 216054739 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216054703) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 115355 + ... + 117212.

It is an arithmetic number, because the mean of its divisors is an integer number (54072060).

Almost surely, 2^216054743 is an apocalyptic number.

216054743 is a deficient number, since it is larger than the sum of its proper divisors (233497).

216054743 is an equidigital number, since it uses as much as digits as its factorization.

216054743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233496.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 216054743 is about 14698.8007333932. The cubic root of 216054743 is about 600.0506836814.

The spelling of 216054743 in words is "two hundred sixteen million, fifty-four thousand, seven hundred forty-three".