145055320 has 16 divisors (see below), whose sum is σ = 326374560. Its totient is φ = 58022112.

The previous prime is 145055311. The next prime is 145055327. The reversal of 145055320 is 23550541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145055327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1813152 + ... + 1813231.

It is an arithmetic number, because the mean of its divisors is an integer number (20398410).

Almost surely, 2^145055320 is an apocalyptic number.

145055320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145055320 is an abundant number, since it is smaller than the sum of its proper divisors (181319240).

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

145055320 is a wasteful number, since it uses less digits than its factorization.

145055320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3626394 (or 3626390 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 145055320 is about 12043.8913977169. The cubic root of 145055320 is about 525.4255898996.

The spelling of 145055320 in words is "one hundred forty-five million, fifty-five thousand, three hundred twenty".