13263251 has 2 divisors, whose sum is σ = 13263252. Its totient is φ = 13263250.

The previous prime is 13263233. The next prime is 13263331. The reversal of 13263251 is 15236231.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13263251 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13263851) 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, 6631625 + 6631626.

It is an arithmetic number, because the mean of its divisors is an integer number (6631626).

Almost surely, 2^13263251 is an apocalyptic number.

13263251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13263251 is an equidigital number, since it uses as much as digits as its factorization.

13263251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 13263251 is about 3641.8746546250. The cubic root of 13263251 is about 236.7100312876.

Adding to 13263251 its reverse (15236231), we get a palindrome (28499482).

The spelling of 13263251 in words is "thirteen million, two hundred sixty-three thousand, two hundred fifty-one".