11318649 has 4 divisors (see below), whose sum is σ = 15091536. Its totient is φ = 7545764.

The previous prime is 11318641. The next prime is 11318653. The reversal of 11318649 is 94681311.

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 an emirpimes, since its reverse is a distinct semiprime: 94681311 = 3 ⋅31560437.

It is a cyclic number.

It is not a de Polignac number, because 11318649 - 2³ = 11318641 is a prime.

It is a super-2 number, since 2×11318649² = 256223630370402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11318641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1886439 + ... + 1886444.

It is an arithmetic number, because the mean of its divisors is an integer number (3772884).

Almost surely, 2^11318649 is an apocalyptic number.

It is an amenable number.

11318649 is a deficient number, since it is larger than the sum of its proper divisors (3772887).

11318649 is an equidigital number, since it uses as much as digits as its factorization.

11318649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772886.

The product of its digits is 5184, while the sum is 33.

The square root of 11318649 is about 3364.3199907262. The cubic root of 11318649 is about 224.5250822253.

The spelling of 11318649 in words is "eleven million, three hundred eighteen thousand, six hundred forty-nine".