145049280 has 112 divisors (see below), whose sum is σ = 464271360. Its totient is φ = 38366208.

The previous prime is 145049273. The next prime is 145049291. The reversal of 145049280 is 82940541.

145049280 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 15 ways as a sum of consecutive naturals, for example, 132897 + ... + 133983.

It is an arithmetic number, because the mean of its divisors is an integer number (4145280).

Almost surely, 2^145049280 is an apocalyptic number.

145049280 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 145049280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232135680).

145049280 is an abundant number, since it is smaller than the sum of its proper divisors (319222080).

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

145049280 is a wasteful number, since it uses less digits than its factorization.

145049280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246 (or 1236 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 145049280 is about 12043.6406455855. The cubic root of 145049280 is about 525.4182970162.

The spelling of 145049280 in words is "one hundred forty-five million, forty-nine thousand, two hundred eighty".