30124281 has 24 divisors (see below), whose sum is σ = 45590272. Its totient is φ = 17661600.

The previous prime is 30124249. The next prime is 30124313. The reversal of 30124281 is 18242103.

It is an interprime number because it is at equal distance from previous prime (30124249) and next prime (30124313).

It is not a de Polignac number, because 30124281 - 2⁵ = 30124249 is a prime.

It is a super-2 number, since 2×30124281² = 1814944611533922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30124981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9915 + ... + 12591.

Almost surely, 2^30124281 is an apocalyptic number.

30124281 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30124281 is a deficient number, since it is larger than the sum of its proper divisors (15465991).

30124281 is a wasteful number, since it uses less digits than its factorization.

30124281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2722 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 30124281 is about 5488.5591005290. The cubic root of 30124281 is about 311.1517371786.

Adding to 30124281 its reverse (18242103), we get a palindrome (48366384).

The spelling of 30124281 in words is "thirty million, one hundred twenty-four thousand, two hundred eighty-one".