144689452 has 24 divisors (see below), whose sum is σ = 255794112. Its totient is φ = 71610000.

The previous prime is 144689443. The next prime is 144689471. The reversal of 144689452 is 254986441.

144689452 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 144689399 and 144689408.

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, 211503 + ... + 212185.

It is an arithmetic number, because the mean of its divisors is an integer number (10658088).

Almost surely, 2^144689452 is an apocalyptic number.

It is an amenable number.

144689452 is a deficient number, since it is larger than the sum of its proper divisors (111104660).

144689452 is a wasteful number, since it uses less digits than its factorization.

144689452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149 (or 1147 counting only the distinct ones).

The product of its digits is 276480, while the sum is 43.

The square root of 144689452 is about 12028.6928633164. The cubic root of 144689452 is about 524.9834637271.

The spelling of 144689452 in words is "one hundred forty-four million, six hundred eighty-nine thousand, four hundred fifty-two".