11641549 has 8 divisors (see below), whose sum is σ = 12375288. Its totient is φ = 10913280.

The previous prime is 11641541. The next prime is 11641559. The reversal of 11641549 is 94514611.

11641549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 7155625 + 4485924 = 2675^2 + 2118^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11641549 - 2³ = 11641541 is a prime.

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 11641549.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11641541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3559 + ... + 5995.

It is an arithmetic number, because the mean of its divisors is an integer number (1546911).

Almost surely, 2^11641549 is an apocalyptic number.

It is an amenable number.

11641549 is a deficient number, since it is larger than the sum of its proper divisors (733739).

11641549 is a wasteful number, since it uses less digits than its factorization.

11641549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735.

The product of its digits is 4320, while the sum is 31.

The square root of 11641549 is about 3411.9714242649. The cubic root of 11641549 is about 226.6401889006.

The spelling of 11641549 in words is "eleven million, six hundred forty-one thousand, five hundred forty-nine".