144664872 has 128 divisors (see below), whose sum is σ = 410572800. Its totient is φ = 42099200.

The previous prime is 144664853. The next prime is 144664889. The reversal of 144664872 is 278466441.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1104247 + ... + 1104377.

It is an arithmetic number, because the mean of its divisors is an integer number (3207600).

Almost surely, 2^144664872 is an apocalyptic number.

144664872 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 144664872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205286400).

144664872 is an abundant number, since it is smaller than the sum of its proper divisors (265907928).

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

144664872 is a wasteful number, since it uses less digits than its factorization.

144664872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 283 counting only the distinct ones).

The product of its digits is 258048, while the sum is 42.

The square root of 144664872 is about 12027.6710962680. The cubic root of 144664872 is about 524.9537337913.

The spelling of 144664872 in words is "one hundred forty-four million, six hundred sixty-four thousand, eight hundred seventy-two".