145704 has 32 divisors (see below), whose sum is σ = 393120. Its totient is φ = 44736.

The previous prime is 145703. The next prime is 145709. The reversal of 145704 is 407541.

It is not an unprimeable number, because it can be changed into a prime (145703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79 + ... + 545.

It is an arithmetic number, because the mean of its divisors is an integer number (12285).

2¹⁴⁵⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 145704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196560).

145704 is an abundant number, since it is smaller than the sum of its proper divisors (247416).

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

145704 is a wasteful number, since it uses less digits than its factorization.

145704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489 (or 485 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 145704 is about 381.7119332691. The cubic root of 145704 is about 52.6207650765.

The spelling of 145704 in words is "one hundred forty-five thousand, seven hundred four".