216752951 has 2 divisors, whose sum is σ = 216752952. Its totient is φ = 216752950.

The previous prime is 216752929. The next prime is 216752959. The reversal of 216752951 is 159257612.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-216752951 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (216752959) 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, 108376475 + 108376476.

It is an arithmetic number, because the mean of its divisors is an integer number (108376476).

Almost surely, 2^216752951 is an apocalyptic number.

216752951 is a deficient number, since it is larger than the sum of its proper divisors (1).

216752951 is an equidigital number, since it uses as much as digits as its factorization.

216752951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 37800, while the sum is 38.

The square root of 216752951 is about 14722.5320852087. The cubic root of 216752951 is about 600.6963683244.

The spelling of 216752951 in words is "two hundred sixteen million, seven hundred fifty-two thousand, nine hundred fifty-one".