11813251 has 2 divisors, whose sum is σ = 11813252. Its totient is φ = 11813250.

The previous prime is 11813233. The next prime is 11813281. The reversal of 11813251 is 15231811.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11813251 - 2¹¹ = 11811203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11813281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5906625 + 5906626.

It is an arithmetic number, because the mean of its divisors is an integer number (5906626).

Almost surely, 2^11813251 is an apocalyptic number.

11813251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11813251 is an equidigital number, since it uses as much as digits as its factorization.

11813251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 240, while the sum is 22.

The square root of 11813251 is about 3437.0410239041. The cubic root of 11813251 is about 227.7489991975.

The spelling of 11813251 in words is "eleven million, eight hundred thirteen thousand, two hundred fifty-one".