11280245 has 4 divisors (see below), whose sum is σ = 13536300. Its totient is φ = 9024192.

The previous prime is 11280239. The next prime is 11280253. The reversal of 11280245 is 54208211.

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 4695889 + 6584356 = 2167^2 + 2566^2 .

It is a cyclic number.

It is not a de Polignac number, because 11280245 - 2¹⁸ = 11018101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11280245.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1128020 + ... + 1128029.

It is an arithmetic number, because the mean of its divisors is an integer number (3384075).

Almost surely, 2^11280245 is an apocalyptic number.

It is an amenable number.

11280245 is a deficient number, since it is larger than the sum of its proper divisors (2256055).

11280245 is an equidigital number, since it uses as much as digits as its factorization.

11280245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256054.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 11280245 is about 3358.6075983955. The cubic root of 11280245 is about 224.2708577777.

Adding to 11280245 its reverse (54208211), we get a palindrome (65488456).

The spelling of 11280245 in words is "eleven million, two hundred eighty thousand, two hundred forty-five".