11426257 has 4 divisors (see below), whose sum is σ = 11458980. Its totient is φ = 11393536.

The previous prime is 11426251. The next prime is 11426263. The reversal of 11426257 is 75262411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75262411 = 7 ⋅10751773.

It is an interprime number because it is at equal distance from previous prime (11426251) and next prime (11426263).

It can be written as a sum of positive squares in 2 ways, for example, as 2178576 + 9247681 = 1476^2 + 3041^2 .

It is a cyclic number.

It is not a de Polignac number, because 11426257 - 2¹¹ = 11424209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11426251) 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, 15832 + ... + 16537.

It is an arithmetic number, because the mean of its divisors is an integer number (2864745).

Almost surely, 2^11426257 is an apocalyptic number.

It is an amenable number.

11426257 is a deficient number, since it is larger than the sum of its proper divisors (32723).

11426257 is an equidigital number, since it uses as much as digits as its factorization.

11426257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32722.

The product of its digits is 3360, while the sum is 28.

The square root of 11426257 is about 3380.2746929798. The cubic root of 11426257 is about 225.2343697773.

Adding to 11426257 its reverse (75262411), we get a palindrome (86688668).

The spelling of 11426257 in words is "eleven million, four hundred twenty-six thousand, two hundred fifty-seven".