11052981 has 6 divisors (see below), whose sum is σ = 15965430. Its totient is φ = 7368648.

The previous prime is 11052967. The next prime is 11053013. The reversal of 11052981 is 18925011.

It can be written as a sum of positive squares in only one way, i.e., 5716881 + 5336100 = 2391^2 + 2310^2 .

It is not a de Polignac number, because 11052981 - 2⁹ = 11052469 is a prime.

It is a super-2 number, since 2×11052981² = 244336777972722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11052911) 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 5 ways as a sum of consecutive naturals, for example, 614046 + ... + 614063.

It is an arithmetic number, because the mean of its divisors is an integer number (2660905).

Almost surely, 2^11052981 is an apocalyptic number.

It is an amenable number.

11052981 is a deficient number, since it is larger than the sum of its proper divisors (4912449).

11052981 is a wasteful number, since it uses less digits than its factorization.

11052981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228115 (or 1228112 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

The square root of 11052981 is about 3324.6023822406. The cubic root of 11052981 is about 222.7544939708.

Adding to 11052981 its reverse (18925011), we get a palindrome (29977992).

The spelling of 11052981 in words is "eleven million, fifty-two thousand, nine hundred eighty-one".