145452144 has 80 divisors (see below), whose sum is σ = 404835200. Its totient is φ = 44851968.

The previous prime is 145452137. The next prime is 145452149. The reversal of 145452144 is 441254541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145452149) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 37362 + ... + 41070.

It is an arithmetic number, because the mean of its divisors is an integer number (5060440).

Almost surely, 2^145452144 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 145452144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202417600).

145452144 is an abundant number, since it is smaller than the sum of its proper divisors (259383056).

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

145452144 is a wasteful number, since it uses less digits than its factorization.

145452144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3782 (or 3776 counting only the distinct ones).

The product of its digits is 12800, while the sum is 30.

The square root of 145452144 is about 12060.3542236536. The cubic root of 145452144 is about 525.9042846074.

The spelling of 145452144 in words is "one hundred forty-five million, four hundred fifty-two thousand, one hundred forty-four".