144621320 has 32 divisors (see below), whose sum is σ = 329987520. Its totient is φ = 57032640.

The previous prime is 144621319. The next prime is 144621371. The reversal of 144621320 is 23126441.

144621320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22622 + ... + 28301.

It is an arithmetic number, because the mean of its divisors is an integer number (10312110).

Almost surely, 2^144621320 is an apocalyptic number.

144621320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144621320 is an abundant number, since it is smaller than the sum of its proper divisors (185366200).

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

144621320 is a wasteful number, since it uses less digits than its factorization.

144621320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51005 (or 51001 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 144621320 is about 12025.8604681744. The cubic root of 144621320 is about 524.9010486223.

Adding to 144621320 its reverse (23126441), we get a palindrome (167747761).

The spelling of 144621320 in words is "one hundred forty-four million, six hundred twenty-one thousand, three hundred twenty".