268354213 has 2 divisors, whose sum is σ = 268354214. Its totient is φ = 268354212.

The previous prime is 268354193. The next prime is 268354217. The reversal of 268354213 is 312453862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 265787809 + 2566404 = 16303^2 + 1602^2 .

It is a cyclic number.

It is not a de Polignac number, because 268354213 - 2¹³ = 268346021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268354217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134177106 + 134177107.

It is an arithmetic number, because the mean of its divisors is an integer number (134177107).

Almost surely, 2^268354213 is an apocalyptic number.

It is an amenable number.

268354213 is a deficient number, since it is larger than the sum of its proper divisors (1).

268354213 is an equidigital number, since it uses as much as digits as its factorization.

268354213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 34.

The square root of 268354213 is about 16381.5204727766. The cubic root of 268354213 is about 645.0144923932.

The spelling of 268354213 in words is "two hundred sixty-eight million, three hundred fifty-four thousand, two hundred thirteen".