268206131 has 2 divisors, whose sum is σ = 268206132. Its totient is φ = 268206130.

The previous prime is 268206053. The next prime is 268206143. The reversal of 268206131 is 131602862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268206131 is a prime.

It is a super-2 number, since 2×268206131² = 143869057411978322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 268206094 and 268206103.

It is not a weakly prime, because it can be changed into another prime (268205131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134103065 + 134103066.

It is an arithmetic number, because the mean of its divisors is an integer number (134103066).

Almost surely, 2^268206131 is an apocalyptic number.

268206131 is a deficient number, since it is larger than the sum of its proper divisors (1).

268206131 is an equidigital number, since it uses as much as digits as its factorization.

268206131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 268206131 is about 16377.0000610612. Note that the first 4 decimals coincide. The cubic root of 268206131 is about 644.8958275766.

Adding to 268206131 its reverse (131602862), we get a palindrome (399808993).

The spelling of 268206131 in words is "two hundred sixty-eight million, two hundred six thousand, one hundred thirty-one".