144512172 has 216 divisors, whose sum is σ = 463095360. Its totient is φ = 37739520.

The previous prime is 144512171. The next prime is 144512183. The reversal of 144512172 is 271215441.

144512172 is a `hidden beast` number, since 1 + 445 + 1 + 217 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (144512171) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1829229 + ... + 1829307.

It is an arithmetic number, because the mean of its divisors is an integer number (2143960).

Almost surely, 2^144512172 is an apocalyptic number.

144512172 is a gapful number since it is divisible by the number (12) 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 144512172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231547680).

144512172 is an abundant number, since it is smaller than the sum of its proper divisors (318583188).

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

144512172 is a wasteful number, since it uses less digits than its factorization.

144512172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181 (or 169 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 144512172 is about 12021.3215579652. The cubic root of 144512172 is about 524.7689650108.

The spelling of 144512172 in words is "one hundred forty-four million, five hundred twelve thousand, one hundred seventy-two".