216302051 has 8 divisors (see below), whose sum is σ = 257950464. Its totient is φ = 177340680.

The previous prime is 216302003. The next prime is 216302071. The reversal of 216302051 is 150203612.

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 216302051 - 2¹⁰ = 216301027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216302071) 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 in 7 ways as a sum of consecutive naturals, for example, 671585 + ... + 671906.

It is an arithmetic number, because the mean of its divisors is an integer number (32243808).

Almost surely, 2^216302051 is an apocalyptic number.

216302051 is a deficient number, since it is larger than the sum of its proper divisors (41648413).

216302051 is a wasteful number, since it uses less digits than its factorization.

216302051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343521.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 216302051 is about 14707.2108504638. The cubic root of 216302051 is about 600.2795465878.

Adding to 216302051 its reverse (150203612), we get a palindrome (366505663).

The spelling of 216302051 in words is "two hundred sixteen million, three hundred two thousand, fifty-one".