11538159 has 8 divisors (see below), whose sum is σ = 15400320. Its totient is φ = 7684056.

The previous prime is 11538133. The next prime is 11538181. The reversal of 11538159 is 95183511.

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

It is not a de Polignac number, because 11538159 - 2⁵ = 11538127 is a prime.

It is a super-2 number, since 2×11538159² = 266258226218562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11538199) 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 7 ways as a sum of consecutive naturals, for example, 3444 + ... + 5910.

It is an arithmetic number, because the mean of its divisors is an integer number (1925040).

Almost surely, 2^11538159 is an apocalyptic number.

11538159 is a deficient number, since it is larger than the sum of its proper divisors (3862161).

11538159 is a wasteful number, since it uses less digits than its factorization.

11538159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029.

The product of its digits is 5400, while the sum is 33.

The square root of 11538159 is about 3396.7865696861. The cubic root of 11538159 is about 225.9672531977.

It can be divided in two parts, 115381 and 59, that added together give a triangular number (115440 = T₄₈₀).

The spelling of 11538159 in words is "eleven million, five hundred thirty-eight thousand, one hundred fifty-nine".