11289457 has 4 divisors (see below), whose sum is σ = 11393140. Its totient is φ = 11185776.

The previous prime is 11289451. The next prime is 11289511. The reversal of 11289457 is 75498211.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2768896 + 8520561 = 1664^2 + 2919^2 .

It is a cyclic number.

It is not a de Polignac number, because 11289457 - 2¹⁹ = 10765169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11289451) 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, 51678 + ... + 51895.

It is an arithmetic number, because the mean of its divisors is an integer number (2848285).

Almost surely, 2^11289457 is an apocalyptic number.

It is an amenable number.

11289457 is a deficient number, since it is larger than the sum of its proper divisors (103683).

11289457 is a wasteful number, since it uses less digits than its factorization.

11289457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103682.

The product of its digits is 20160, while the sum is 37.

The square root of 11289457 is about 3359.9787201707. The cubic root of 11289457 is about 224.3318913517.

It can be divided in two parts, 1128 and 9457, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 11289457 in words is "eleven million, two hundred eighty-nine thousand, four hundred fifty-seven".