11995144 has 64 divisors (see below), whose sum is σ = 27417600. Its totient is φ = 4809024.

The previous prime is 11995129. The next prime is 11995147. The reversal of 11995144 is 44159911.

11995144 = T₃₄₄ + T₃₄₅ + ... + T₄₈₂.

It is not an unprimeable number, because it can be changed into a prime (11995147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86227 + ... + 86365.

It is an arithmetic number, because the mean of its divisors is an integer number (428400).

Almost surely, 2^11995144 is an apocalyptic number.

11995144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11995144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13708800).

11995144 is an abundant number, since it is smaller than the sum of its proper divisors (15422456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11995144 is a wasteful number, since it uses less digits than its factorization.

11995144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 238 counting only the distinct ones).

The product of its digits is 6480, while the sum is 34.

The square root of 11995144 is about 3463.4006409886. The cubic root of 11995144 is about 228.9119624977.

The spelling of 11995144 in words is "eleven million, nine hundred ninety-five thousand, one hundred forty-four".