144185172 has 12 divisors (see below), whose sum is σ = 336432096. Its totient is φ = 48061720.

The previous prime is 144185161. The next prime is 144185201. The reversal of 144185172 is 271581441.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6007704 + ... + 6007727.

It is an arithmetic number, because the mean of its divisors is an integer number (28036008).

Almost surely, 2^144185172 is an apocalyptic number.

144185172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

144185172 is an abundant number, since it is smaller than the sum of its proper divisors (192246924).

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

144185172 is a wasteful number, since it uses less digits than its factorization.

144185172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12015438 (or 12015436 counting only the distinct ones).

The product of its digits is 8960, while the sum is 33.

The square root of 144185172 is about 12007.7130212210. The cubic root of 144185172 is about 524.3728529439.

The spelling of 144185172 in words is "one hundred forty-four million, one hundred eighty-five thousand, one hundred seventy-two".