146281728 has 36 divisors (see below), whose sum is σ = 389324768. Its totient is φ = 48760320.

The previous prime is 146281717. The next prime is 146281739. The reversal of 146281728 is 827182641.

It is a happy number.

146281728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (146281717) and next prime (146281739).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94468 + ... + 96003.

Almost surely, 2^146281728 is an apocalyptic number.

It is an amenable number.

146281728 is an abundant number, since it is smaller than the sum of its proper divisors (243043040).

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

146281728 is an equidigital number, since it uses as much as digits as its factorization.

146281728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190490 (or 190476 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 146281728 is about 12094.6983426624. The cubic root of 146281728 is about 526.9022186912.

The spelling of 146281728 in words is "one hundred forty-six million, two hundred eighty-one thousand, seven hundred twenty-eight".