11670281 has 24 divisors (see below), whose sum is σ = 14373576. Its totient is φ = 9434880.

The previous prime is 11670277. The next prime is 11670283. The reversal of 11670281 is 18207611.

It can be written as a sum of positive squares in 4 ways, for example, as 614656 + 11055625 = 784^2 + 3325^2 .

It is not a de Polignac number, because 11670281 - 2² = 11670277 is a prime.

It is a super-2 number, since 2×11670281² = 272390917237922, which contains 22 as substring.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 11670281.

It is not an unprimeable number, because it can be changed into a prime (11670283) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74255 + ... + 74411.

It is an arithmetic number, because the mean of its divisors is an integer number (598899).

Almost surely, 2^11670281 is an apocalyptic number.

It is an amenable number.

11670281 is a deficient number, since it is larger than the sum of its proper divisors (2703295).

11670281 is a wasteful number, since it uses less digits than its factorization.

11670281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 26.

The square root of 11670281 is about 3416.1792985732. The cubic root of 11670281 is about 226.8264893106.

Adding to 11670281 its reverse (18207611), we get a palindrome (29877892).

The spelling of 11670281 in words is "eleven million, six hundred seventy thousand, two hundred eighty-one".