30148503 has 16 divisors (see below), whose sum is σ = 50117376. Its totient is φ = 15661440.

The previous prime is 30148501. The next prime is 30148507. The reversal of 30148503 is 30584103.

It is not a de Polignac number, because 30148503 - 2¹ = 30148501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30148501) 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 15 ways as a sum of consecutive naturals, for example, 65026 + ... + 65487.

It is an arithmetic number, because the mean of its divisors is an integer number (3132336).

Almost surely, 2^30148503 is an apocalyptic number.

30148503 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

30148503 is a deficient number, since it is larger than the sum of its proper divisors (19968873).

30148503 is a wasteful number, since it uses less digits than its factorization.

30148503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130534.

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

The square root of 30148503 is about 5490.7652472128. The cubic root of 30148503 is about 311.2351106569.

Subtracting 30148503 from its reverse (30584103), we obtain a square (435600 = 660²).

The spelling of 30148503 in words is "thirty million, one hundred forty-eight thousand, five hundred three".