216148073 has 2 divisors, whose sum is σ = 216148074. Its totient is φ = 216148072.

The previous prime is 216148063. The next prime is 216148087. The reversal of 216148073 is 370841612.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209757289 + 6390784 = 14483^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 216148073 - 2¹⁰ = 216147049 is a prime.

It is a super-2 number, since 2×216148073² = 93439978923226658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (216148003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108074036 + 108074037.

It is an arithmetic number, because the mean of its divisors is an integer number (108074037).

Almost surely, 2^216148073 is an apocalyptic number.

It is an amenable number.

216148073 is a deficient number, since it is larger than the sum of its proper divisors (1).

216148073 is an equidigital number, since it uses as much as digits as its factorization.

216148073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 216148073 is about 14701.9751394158. The cubic root of 216148073 is about 600.1370733121.

Adding to 216148073 its reverse (370841612), we get a palindrome (586989685).

The spelling of 216148073 in words is "two hundred sixteen million, one hundred forty-eight thousand, seventy-three".