11151151 has 4 divisors (see below), whose sum is σ = 12164904. Its totient is φ = 10137400.

The previous prime is 11151143. The next prime is 11151169. The reversal of 11151151 is 15115111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15115111 = 11 ⋅1374101.

It is a cyclic number.

It is not a de Polignac number, because 11151151 - 2³ = 11151143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11151131) 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 in 3 ways as a sum of consecutive naturals, for example, 506860 + ... + 506881.

It is an arithmetic number, because the mean of its divisors is an integer number (3041226).

Almost surely, 2^11151151 is an apocalyptic number.

11151151 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11151151 is a deficient number, since it is larger than the sum of its proper divisors (1013753).

11151151 is a wasteful number, since it uses less digits than its factorization.

11151151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013752.

The product of its digits is 25, while the sum is 16.

The square root of 11151151 is about 3339.3339156185. Note that the first 3 decimals coincide. The cubic root of 11151151 is about 223.4120355775.

Adding to 11151151 its reverse (15115111), we get a palindrome (26266262).

It can be divided in two parts, 11 and 151151, that multiplied together give a palindrome (1662661).

The spelling of 11151151 in words is "eleven million, one hundred fifty-one thousand, one hundred fifty-one".