145075280 has 160 divisors (see below), whose sum is σ = 417830400. Its totient is φ = 46663680.

The previous prime is 145075253. The next prime is 145075291. The reversal of 145075280 is 82570541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 466325 + ... + 466635.

It is an arithmetic number, because the mean of its divisors is an integer number (2611440).

Almost surely, 2^145075280 is an apocalyptic number.

145075280 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 145075280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (208915200).

145075280 is an abundant number, since it is smaller than the sum of its proper divisors (272755120).

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

145075280 is a wasteful number, since it uses less digits than its factorization.

145075280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 145075280 is about 12044.7200050479. The cubic root of 145075280 is about 525.4496887831.

The spelling of 145075280 in words is "one hundred forty-five million, seventy-five thousand, two hundred eighty".