148225728 has 112 divisors (see below), whose sum is σ = 463783680. Its totient is φ = 40879104.

The previous prime is 148225711. The next prime is 148225739. The reversal of 148225728 is 827522841.

148225728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×148225728² = 43941732882259968, which contains 22 as substring.

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, 37075 + ... + 40877.

Almost surely, 2^148225728 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 148225728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231891840).

148225728 is an abundant number, since it is smaller than the sum of its proper divisors (315557952).

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

148225728 is a wasteful number, since it uses less digits than its factorization.

148225728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3854 (or 3844 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 148225728 is about 12174.7988895094. The cubic root of 148225728 is about 529.2260306256.

The spelling of 148225728 in words is "one hundred forty-eight million, two hundred twenty-five thousand, seven hundred twenty-eight".