145000144 has 40 divisors (see below), whose sum is σ = 291306752. Its totient is φ = 69845760.

The previous prime is 145000117. The next prime is 145000169. The reversal of 145000144 is 441000541.

145000144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 139852 + ... + 140884.

Almost surely, 2^145000144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145000144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145653376).

145000144 is an abundant number, since it is smaller than the sum of its proper divisors (146306608).

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

145000144 is a wasteful number, since it uses less digits than its factorization.

145000144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 145000144 is about 12041.6005580654. The cubic root of 145000144 is about 525.3589611611.

Adding to 145000144 its reverse (441000541), we get a palindrome (586000685).

The spelling of 145000144 in words is "one hundred forty-five million, one hundred forty-four", and thus it is an aban number.