144452520 has 96 divisors (see below), whose sum is σ = 472797000. Its totient is φ = 38247936.

The previous prime is 144452501. The next prime is 144452549. The reversal of 144452520 is 25254441.

It can be written as a sum of positive squares in 4 ways, for example, as 80676324 + 63776196 = 8982^2 + 7986^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52294 + ... + 54986.

Almost surely, 2^144452520 is an apocalyptic number.

144452520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 144452520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236398500).

144452520 is an abundant number, since it is smaller than the sum of its proper divisors (328344480).

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

144452520 is a wasteful number, since it uses less digits than its factorization.

144452520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2859 (or 2852 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 144452520 is about 12018.8402102699. The cubic root of 144452520 is about 524.6967500409.

The spelling of 144452520 in words is "one hundred forty-four million, four hundred fifty-two thousand, five hundred twenty".