11242551 has 8 divisors (see below), whose sum is σ = 15105024. Its totient is φ = 7437560.

The previous prime is 11242549. The next prime is 11242589. The reversal of 11242551 is 15524211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11242551 - 2¹ = 11242549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11242501) 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 7 ways as a sum of consecutive naturals, for example, 13911 + ... + 14696.

It is an arithmetic number, because the mean of its divisors is an integer number (1888128).

Almost surely, 2^11242551 is an apocalyptic number.

11242551 is a deficient number, since it is larger than the sum of its proper divisors (3862473).

11242551 is a wasteful number, since it uses less digits than its factorization.

11242551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28741.

The product of its digits is 400, while the sum is 21.

The square root of 11242551 is about 3352.9913510178. The cubic root of 11242551 is about 224.0207716176.

Adding to 11242551 its reverse (15524211), we get a palindrome (26766762).

The spelling of 11242551 in words is "eleven million, two hundred forty-two thousand, five hundred fifty-one".