216248951 has 2 divisors, whose sum is σ = 216248952. Its totient is φ = 216248950.

The previous prime is 216248933. The next prime is 216249001. The reversal of 216248951 is 159842612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216248951 - 2¹⁴ = 216232567 is a 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 (216248051) 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, 108124475 + 108124476.

It is an arithmetic number, because the mean of its divisors is an integer number (108124476).

Almost surely, 2^216248951 is an apocalyptic number.

216248951 is a deficient number, since it is larger than the sum of its proper divisors (1).

216248951 is an equidigital number, since it uses as much as digits as its factorization.

216248951 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 216248951 is about 14705.4055027395. The cubic root of 216248951 is about 600.2304216836.

The spelling of 216248951 in words is "two hundred sixteen million, two hundred forty-eight thousand, nine hundred fifty-one".