144452252020 has 24 divisors (see below), whose sum is σ = 303668079624. Its totient is φ = 57720262656.

The previous prime is 144452252011. The next prime is 144452252023. The reversal of 144452252020 is 20252254441.

It can be written as a sum of positive squares in 4 ways, for example, as 50784425316 + 93667826704 = 225354^2 + 306052^2 .

It is a super-2 number, since 2×144452252020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144452252023) 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, 3770349 + ... + 3808468.

It is an arithmetic number, because the mean of its divisors is an integer number (12652836651).

Almost surely, 2^144452252020 is an apocalyptic number.

144452252020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144452252020 is an abundant number, since it is smaller than the sum of its proper divisors (159215827604).

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

144452252020 is a wasteful number, since it uses less digits than its factorization.

144452252020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7579779 (or 7579777 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 31.

The spelling of 144452252020 in words is "one hundred forty-four billion, four hundred fifty-two million, two hundred fifty-two thousand, twenty".