273216001 has 2 divisors, whose sum is σ = 273216002. Its totient is φ = 273216000.

The previous prime is 273215983. The next prime is 273216043. The reversal of 273216001 is 100612372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 198133776 + 75082225 = 14076^2 + 8665^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273216001 is a prime.

It is not a weakly prime, because it can be changed into another prime (273216071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136608000 + 136608001.

It is an arithmetic number, because the mean of its divisors is an integer number (136608001).

Almost surely, 2^273216001 is an apocalyptic number.

It is an amenable number.

273216001 is a deficient number, since it is larger than the sum of its proper divisors (1).

273216001 is an equidigital number, since it uses as much as digits as its factorization.

273216001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 273216001 is about 16529.2468370461. The cubic root of 273216001 is about 648.8864571394.

Adding to 273216001 its reverse (100612372), we get a palindrome (373828373).

The spelling of 273216001 in words is "two hundred seventy-three million, two hundred sixteen thousand, one".