11281651 has 2 divisors, whose sum is σ = 11281652. Its totient is φ = 11281650.

The previous prime is 11281643. The next prime is 11281681. The reversal of 11281651 is 15618211.

It is a happy number.

11281651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11281651 - 2³ = 11281643 is a prime.

It is a nialpdrome in base 15.

It is not a weakly prime, because it can be changed into another prime (11281631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5640825 + 5640826.

It is an arithmetic number, because the mean of its divisors is an integer number (5640826).

Almost surely, 2^11281651 is an apocalyptic number.

11281651 is a deficient number, since it is larger than the sum of its proper divisors (1).

11281651 is an equidigital number, since it uses as much as digits as its factorization.

11281651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 25.

The square root of 11281651 is about 3358.8169048044. The cubic root of 11281651 is about 224.2801752977.

Adding to 11281651 its reverse (15618211), we get a palindrome (26899862).

The spelling of 11281651 in words is "eleven million, two hundred eighty-one thousand, six hundred fifty-one".