145068728 has 96 divisors (see below), whose sum is σ = 334454400. Its totient is φ = 57756864.

The previous prime is 145068719. The next prime is 145068731. The reversal of 145068728 is 827860541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1747775 + ... + 1747857.

It is an arithmetic number, because the mean of its divisors is an integer number (3483900).

Almost surely, 2^145068728 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 145068728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167227200).

145068728 is an abundant number, since it is smaller than the sum of its proper divisors (189385672).

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

145068728 is a wasteful number, since it uses less digits than its factorization.

145068728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 145068728 is about 12044.4480155796. The cubic root of 145068728 is about 525.4417784114.

The spelling of 145068728 in words is "one hundred forty-five million, sixty-eight thousand, seven hundred twenty-eight".