11639159 has 4 divisors (see below), whose sum is σ = 13301904. Its totient is φ = 9976416.

The previous prime is 11639141. The next prime is 11639161. The reversal of 11639159 is 95193611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11639159 - 2⁸ = 11638903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11639189) 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, 831362 + ... + 831375.

It is an arithmetic number, because the mean of its divisors is an integer number (3325476).

Almost surely, 2^11639159 is an apocalyptic number.

11639159 is a deficient number, since it is larger than the sum of its proper divisors (1662745).

11639159 is an equidigital number, since it uses as much as digits as its factorization.

11639159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1662744.

The product of its digits is 7290, while the sum is 35.

The square root of 11639159 is about 3411.6211688873. The cubic root of 11639159 is about 226.6246781605.

The spelling of 11639159 in words is "eleven million, six hundred thirty-nine thousand, one hundred fifty-nine".