144921712 has 40 divisors (see below), whose sum is σ = 315542304. Its totient is φ = 63976704.

The previous prime is 144921703. The next prime is 144921743. The reversal of 144921712 is 217129441.

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 7 ways as a sum of consecutive naturals, for example, 10363 + ... + 19930.

Almost surely, 2^144921712 is an apocalyptic number.

It is an amenable number.

144921712 is an abundant number, since it is smaller than the sum of its proper divisors (170620592).

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

144921712 is a wasteful number, since it uses less digits than its factorization.

144921712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30337 (or 30331 counting only the distinct ones).

The product of its digits is 4032, while the sum is 31.

The square root of 144921712 is about 12038.3434076288. The cubic root of 144921712 is about 525.2642201387.

The spelling of 144921712 in words is "one hundred forty-four million, nine hundred twenty-one thousand, seven hundred twelve".