11042251 has 4 divisors (see below), whose sum is σ = 12046104. Its totient is φ = 10038400.

The previous prime is 11042233. The next prime is 11042261. The reversal of 11042251 is 15224011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11042251 - 2⁷ = 11042123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11042201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501910 + ... + 501931.

It is an arithmetic number, because the mean of its divisors is an integer number (3011526).

Almost surely, 2^11042251 is an apocalyptic number.

11042251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11042251 is a deficient number, since it is larger than the sum of its proper divisors (1003853).

11042251 is a wasteful number, since it uses less digits than its factorization.

11042251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003852.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 11042251 is about 3322.9882635965. The cubic root of 11042251 is about 222.6823888505.

Adding to 11042251 its reverse (15224011), we get a palindrome (26266262).

The spelling of 11042251 in words is "eleven million, forty-two thousand, two hundred fifty-one".