145454504 has 32 divisors (see below), whose sum is σ = 296329320. Its totient is φ = 66533376.

The previous prime is 145454503. The next prime is 145454531. The reversal of 145454504 is 405454541.

145454504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 25989604 + 119464900 = 5098^2 + 10930^2 .

It is not an unprimeable number, because it can be changed into a prime (145454501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5564 + ... + 17940.

Almost surely, 2^145454504 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 145454504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148164660).

145454504 is an abundant number, since it is smaller than the sum of its proper divisors (150874816).

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

145454504 is a wasteful number, since it uses less digits than its factorization.

145454504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12509 (or 12505 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

The square root of 145454504 is about 12060.4520644958. The cubic root of 145454504 is about 525.9071289047.

The spelling of 145454504 in words is "one hundred forty-five million, four hundred fifty-four thousand, five hundred four".