145590 has 32 divisors (see below), whose sum is σ = 366336. Its totient is φ = 36960.

The previous prime is 145589. The next prime is 145601. The reversal of 145590 is 95541.

145590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145590.

It is a congruent number.

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, 585 + ... + 795.

It is an arithmetic number, because the mean of its divisors is an integer number (11448).

2¹⁴⁵⁵⁹⁰ is an apocalyptic number.

145590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 145590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183168).

145590 is an abundant number, since it is smaller than the sum of its proper divisors (220746).

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

145590 is a wasteful number, since it uses less digits than its factorization.

145590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 145590 is about 381.5625767813. The cubic root of 145590 is about 52.6070378570.

The spelling of 145590 in words is "one hundred forty-five thousand, five hundred ninety".