11639149 has 4 divisors (see below), whose sum is σ = 11786560. Its totient is φ = 11491740.

The previous prime is 11639141. The next prime is 11639161. The reversal of 11639149 is 94193611.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 11639149 - 2³ = 11639141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11639141) 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 3 ways as a sum of consecutive naturals, for example, 73587 + ... + 73744.

It is an arithmetic number, because the mean of its divisors is an integer number (2946640).

Almost surely, 2^11639149 is an apocalyptic number.

It is an amenable number.

11639149 is a deficient number, since it is larger than the sum of its proper divisors (147411).

11639149 is an equidigital number, since it uses as much as digits as its factorization.

11639149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147410.

The product of its digits is 5832, while the sum is 34.

The square root of 11639149 is about 3411.6197033081. The cubic root of 11639149 is about 226.6246132575.

The spelling of 11639149 in words is "eleven million, six hundred thirty-nine thousand, one hundred forty-nine".