145121404344 has 128 divisors (see below), whose sum is σ = 432421785600. Its totient is φ = 39711928320.

The previous prime is 145121404301. The next prime is 145121404357. The reversal of 145121404344 is 443404121541.

145121404344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361542 + ... + 648810.

It is an arithmetic number, because the mean of its divisors is an integer number (3378295200).

Almost surely, 2^145121404344 is an apocalyptic number.

145121404344 is a gapful number since it is divisible by the number (14) 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 145121404344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216210892800).

145121404344 is an abundant number, since it is smaller than the sum of its proper divisors (287300381256).

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

145121404344 is a wasteful number, since it uses less digits than its factorization.

145121404344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287413 (or 287409 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 145121404344 its reverse (443404121541), we get a palindrome (588525525885).

The spelling of 145121404344 in words is "one hundred forty-five billion, one hundred twenty-one million, four hundred four thousand, three hundred forty-four".