216301513 has 2 divisors, whose sum is σ = 216301514. Its totient is φ = 216301512.

The previous prime is 216301511. The next prime is 216301541. The reversal of 216301513 is 315103612.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178810384 + 37491129 = 13372^2 + 6123^2 .

It is a cyclic number.

It is not a de Polignac number, because 216301513 - 2¹ = 216301511 is a prime.

Together with 216301511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (216301511) 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 as a sum of consecutive naturals, namely, 108150756 + 108150757.

It is an arithmetic number, because the mean of its divisors is an integer number (108150757).

Almost surely, 2^216301513 is an apocalyptic number.

It is an amenable number.

216301513 is a deficient number, since it is larger than the sum of its proper divisors (1).

216301513 is an equidigital number, since it uses as much as digits as its factorization.

216301513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 216301513 is about 14707.1925601047. The cubic root of 216301513 is about 600.2790489031.

The spelling of 216301513 in words is "two hundred sixteen million, three hundred one thousand, five hundred thirteen".