273868213 has 2 divisors, whose sum is σ = 273868214. Its totient is φ = 273868212.

The previous prime is 273868183. The next prime is 273868241. The reversal of 273868213 is 312868372.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 192182769 + 81685444 = 13863^2 + 9038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-273868213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (273868313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136934106 + 136934107.

It is an arithmetic number, because the mean of its divisors is an integer number (136934107).

Almost surely, 2^273868213 is an apocalyptic number.

It is an amenable number.

273868213 is a deficient number, since it is larger than the sum of its proper divisors (1).

273868213 is an equidigital number, since it uses as much as digits as its factorization.

273868213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 40.

The square root of 273868213 is about 16548.9641065536. The cubic root of 273868213 is about 649.4023800961.

The spelling of 273868213 in words is "two hundred seventy-three million, eight hundred sixty-eight thousand, two hundred thirteen".