11141551 has 4 divisors (see below), whose sum is σ = 11442712. Its totient is φ = 10840392.

The previous prime is 11141549. The next prime is 11141573. The reversal of 11141551 is 15514111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15514111 = 83 ⋅186917.

It is a cyclic number.

It is not a de Polignac number, because 11141551 - 2¹ = 11141549 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 (11141521) 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 in 3 ways as a sum of consecutive naturals, for example, 150525 + ... + 150598.

It is an arithmetic number, because the mean of its divisors is an integer number (2860678).

Almost surely, 2^11141551 is an apocalyptic number.

11141551 is a deficient number, since it is larger than the sum of its proper divisors (301161).

11141551 is an equidigital number, since it uses as much as digits as its factorization.

11141551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301160.

The product of its digits is 100, while the sum is 19.

The square root of 11141551 is about 3337.8961937124. The cubic root of 11141551 is about 223.3479055366.

Adding to 11141551 its reverse (15514111), we get a palindrome (26655662).

The spelling of 11141551 in words is "eleven million, one hundred forty-one thousand, five hundred fifty-one".