30503148 has 60 divisors (see below), whose sum is σ = 77971320. Its totient is φ = 9280128.

The previous prime is 30503119. The next prime is 30503149. The reversal of 30503148 is 84130503.

It is a super-3 number, since 3×30503148³ (a number of 23 digits) contains 333 as substring.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (30503149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 342688 + ... + 342776.

It is an arithmetic number, because the mean of its divisors is an integer number (1299522).

Almost surely, 2^30503148 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 30503148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38985660).

30503148 is an abundant number, since it is smaller than the sum of its proper divisors (47468172).

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

30503148 is an equidigital number, since it uses as much as digits as its factorization.

30503148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148 (or 107 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30503148 is about 5522.9655077684. The cubic root of 30503148 is about 312.4507374080.

The spelling of 30503148 in words is "thirty million, five hundred three thousand, one hundred forty-eight".