145521021124304 has 160 divisors (see below), whose sum is σ = 336571769647104. Its totient is φ = 59594847206400.

The previous prime is 145521021124279. The next prime is 145521021124361. The reversal of 145521021124304 is 403421120125541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13094660252 + ... + 13094671364.

Almost surely, 2^{145521021124304} is an apocalyptic number.

145521021124304 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 145521021124304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168285884823552).

145521021124304 is an abundant number, since it is smaller than the sum of its proper divisors (191050748522800).

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

145521021124304 is a wasteful number, since it uses less digits than its factorization.

145521021124304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15785 (or 15779 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 145521021124304 its reverse (403421120125541), we get a palindrome (548942141249845).

The spelling of 145521021124304 in words is "one hundred forty-five trillion, five hundred twenty-one billion, twenty-one million, one hundred twenty-four thousand, three hundred four".