11155051 has 2 divisors, whose sum is σ = 11155052. Its totient is φ = 11155050.

The previous prime is 11155049. The next prime is 11155061. The reversal of 11155051 is 15055111.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (15055111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11155051 - 2¹ = 11155049 is a prime.

Together with 11155049, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11155061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5577525 + 5577526.

It is an arithmetic number, because the mean of its divisors is an integer number (5577526).

Almost surely, 2^11155051 is an apocalyptic number.

11155051 is a deficient number, since it is larger than the sum of its proper divisors (1).

11155051 is an equidigital number, since it uses as much as digits as its factorization.

11155051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 19.

The square root of 11155051 is about 3339.9178133601. The cubic root of 11155051 is about 223.4380778931.

The spelling of 11155051 in words is "eleven million, one hundred fifty-five thousand, fifty-one".