11148257 has 4 divisors (see below), whose sum is σ = 11155140. Its totient is φ = 11141376.

The previous prime is 11148253. The next prime is 11148271. The reversal of 11148257 is 75284111.

11148257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 75284111 = 7 ⋅10754873.

It can be written as a sum of positive squares in 2 ways, for example, as 4157521 + 6990736 = 2039^2 + 2644^2 .

It is a cyclic number.

It is not a de Polignac number, because 11148257 - 2² = 11148253 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11148253) 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, 473 + ... + 4745.

It is an arithmetic number, because the mean of its divisors is an integer number (2788785).

Almost surely, 2^11148257 is an apocalyptic number.

It is an amenable number.

11148257 is a deficient number, since it is larger than the sum of its proper divisors (6883).

11148257 is an equidigital number, since it uses as much as digits as its factorization.

11148257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6882.

The product of its digits is 2240, while the sum is 29.

The square root of 11148257 is about 3338.9005675521. The cubic root of 11148257 is about 223.3927069189.

The spelling of 11148257 in words is "eleven million, one hundred forty-eight thousand, two hundred fifty-seven".