145980780 has 144 divisors (see below), whose sum is σ = 463567104. Its totient is φ = 34039040.

The previous prime is 145980773. The next prime is 145980797. The reversal of 145980780 is 87089541.

145980780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 554929 + ... + 555191.

It is an arithmetic number, because the mean of its divisors is an integer number (3219216).

Almost surely, 2^145980780 is an apocalyptic number.

145980780 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 145980780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231783552).

145980780 is an abundant number, since it is smaller than the sum of its proper divisors (317586324).

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

145980780 is a wasteful number, since it uses less digits than its factorization.

145980780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The square root of 145980780 is about 12082.2506181589. The cubic root of 145980780 is about 526.5406355129.

The spelling of 145980780 in words is "one hundred forty-five million, nine hundred eighty thousand, seven hundred eighty".