268451251 has 2 divisors, whose sum is σ = 268451252. Its totient is φ = 268451250.

The previous prime is 268451237. The next prime is 268451257. The reversal of 268451251 is 152154862.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268451251 - 2⁵ = 268451219 is a prime.

It is not a weakly prime, because it can be changed into another prime (268451257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134225625 + 134225626.

It is an arithmetic number, because the mean of its divisors is an integer number (134225626).

Almost surely, 2^268451251 is an apocalyptic number.

268451251 is a deficient number, since it is larger than the sum of its proper divisors (1).

268451251 is an equidigital number, since it uses as much as digits as its factorization.

268451251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 34.

The square root of 268451251 is about 16384.4820180560. The cubic root of 268451251 is about 645.0922296653.

It can be divided in two parts, 2684 and 51251, that added together give a palindrome (53935).

The spelling of 268451251 in words is "two hundred sixty-eight million, four hundred fifty-one thousand, two hundred fifty-one".