11296981 has 4 divisors (see below), whose sum is σ = 11303712. Its totient is φ = 11290252.

The previous prime is 11296973. The next prime is 11296991. The reversal of 11296981 is 18969211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 18969211 = 157 ⋅120823.

It is a cyclic number.

It is not a de Polignac number, because 11296981 - 2³ = 11296973 is a prime.

It is a super-2 number, since 2×11296981² = 255243559428722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11296981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11296991) 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, 1440 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (2825928).

Almost surely, 2^11296981 is an apocalyptic number.

It is an amenable number.

11296981 is a deficient number, since it is larger than the sum of its proper divisors (6731).

11296981 is an equidigital number, since it uses as much as digits as its factorization.

11296981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6730.

The product of its digits is 7776, while the sum is 37.

The square root of 11296981 is about 3361.0981836299. The cubic root of 11296981 is about 224.3817165506.

It can be divided in two parts, 112969 and 81, that added together give a triangular number (113050 = T₄₇₅).

The spelling of 11296981 in words is "eleven million, two hundred ninety-six thousand, nine hundred eighty-one".