30124081 has 6 divisors (see below), whose sum is σ = 32619750. Its totient is φ = 27806688.

The previous prime is 30124079. The next prime is 30124091. The reversal of 30124081 is 18042103.

It can be written as a sum of positive squares in 3 ways, for example, as 2509056 + 27615025 = 1584^2 + 5255^2 .

It is not a de Polignac number, because 30124081 - 2¹ = 30124079 is a prime.

It is a super-2 number, since 2×30124081² = 1814920512189122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30124001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88956 + ... + 89293.

It is an arithmetic number, because the mean of its divisors is an integer number (5436625).

Almost surely, 2^30124081 is an apocalyptic number.

It is an amenable number.

30124081 is a deficient number, since it is larger than the sum of its proper divisors (2495669).

30124081 is a wasteful number, since it uses less digits than its factorization.

30124081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178275 (or 178262 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 30124081 is about 5488.5408807806. The cubic root of 30124081 is about 311.1510485814.

Adding to 30124081 its reverse (18042103), we get a palindrome (48166184).

The spelling of 30124081 in words is "thirty million, one hundred twenty-four thousand, eighty-one".