216144707 has 2 divisors, whose sum is σ = 216144708. Its totient is φ = 216144706.

The previous prime is 216144697. The next prime is 216144727. The reversal of 216144707 is 707441612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 216144707 - 2¹² = 216140611 is a prime.

It is not a weakly prime, because it can be changed into another prime (216144727) 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 as a sum of consecutive naturals, namely, 108072353 + 108072354.

It is an arithmetic number, because the mean of its divisors is an integer number (108072354).

Almost surely, 2^216144707 is an apocalyptic number.

216144707 is a deficient number, since it is larger than the sum of its proper divisors (1).

216144707 is an equidigital number, since it uses as much as digits as its factorization.

216144707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 216144707 is about 14701.8606645554. The cubic root of 216144707 is about 600.1339580528.

The spelling of 216144707 in words is "two hundred sixteen million, one hundred forty-four thousand, seven hundred seven".