268318541 has 2 divisors, whose sum is σ = 268318542. Its totient is φ = 268318540.

The previous prime is 268318517. The next prime is 268318553. The reversal of 268318541 is 145813862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 171217225 + 97101316 = 13085^2 + 9854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268318541 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 268318495 and 268318504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268318591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134159270 + 134159271.

It is an arithmetic number, because the mean of its divisors is an integer number (134159271).

Almost surely, 2^268318541 is an apocalyptic number.

It is an amenable number.

268318541 is a deficient number, since it is larger than the sum of its proper divisors (1).

268318541 is an equidigital number, since it uses as much as digits as its factorization.

268318541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 38.

The square root of 268318541 is about 16380.4316487692. The cubic root of 268318541 is about 644.9859107953.

The spelling of 268318541 in words is "two hundred sixty-eight million, three hundred eighteen thousand, five hundred forty-one".