145432144 has 80 divisors (see below), whose sum is σ = 350602560. Its totient is φ = 57415680.

The previous prime is 145432123. The next prime is 145432169. The reversal of 145432144 is 441234541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37027 + ... + 40765.

It is an arithmetic number, because the mean of its divisors is an integer number (4382532).

Almost surely, 2^145432144 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 145432144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175301280).

145432144 is an abundant number, since it is smaller than the sum of its proper divisors (205170416).

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

145432144 is a wasteful number, since it uses less digits than its factorization.

145432144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788 (or 3782 counting only the distinct ones).

The product of its digits is 7680, while the sum is 28.

The square root of 145432144 is about 12059.5250321064. The cubic root of 145432144 is about 525.8801791582.

Adding to 145432144 its reverse (441234541), we get a palindrome (586666685).

It can be divided in two parts, 1454321 and 44, that added together give a triangular number (1454365 = T₁₇₀₅).

The spelling of 145432144 in words is "one hundred forty-five million, four hundred thirty-two thousand, one hundred forty-four".