11141649 has 6 divisors (see below), whose sum is σ = 16093506. Its totient is φ = 7427760.

The previous prime is 11141621. The next prime is 11141693. The reversal of 11141649 is 94614111.

11141649 is a `hidden beast` number, since 1 + 1 + 14 + 1 + 649 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6411024 + 4730625 = 2532^2 + 2175^2 .

It is not a de Polignac number, because 11141649 - 2⁷ = 11141521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11141609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618972 + ... + 618989.

It is an arithmetic number, because the mean of its divisors is an integer number (2682251).

Almost surely, 2^11141649 is an apocalyptic number.

It is an amenable number.

11141649 is a deficient number, since it is larger than the sum of its proper divisors (4951857).

11141649 is a wasteful number, since it uses less digits than its factorization.

11141649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237967 (or 1237964 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 11141649 is about 3337.9108735855. The cubic root of 11141649 is about 223.3485603835.

The spelling of 11141649 in words is "eleven million, one hundred forty-one thousand, six hundred forty-nine".