69144 has 32 divisors (see below), whose sum is σ = 179520. Its totient is φ = 22176.

The previous prime is 69143. The next prime is 69149. The reversal of 69144 is 44196.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 999 + ... + 1065.

It is an arithmetic number, because the mean of its divisors is an integer number (5610).

2⁶⁹¹⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89760).

69144 is an abundant number, since it is smaller than the sum of its proper divisors (110376).

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

69144 is a wasteful number, since it uses less digits than its factorization.

69144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119 (or 115 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 69144 is about 262.9524671875. The cubic root of 69144 is about 41.0441721038.

The spelling of 69144 in words is "sixty-nine thousand, one hundred forty-four".