30138241 has 8 divisors (see below), whose sum is σ = 34673024. Its totient is φ = 25660800.

The previous prime is 30138217. The next prime is 30138271. The reversal of 30138241 is 14283103.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a 6-Lehmer number, since φ(30138241) divides (30138241-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 30138241 - 2¹¹ = 30136193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30138271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13200 + ... + 15313.

It is an arithmetic number, because the mean of its divisors is an integer number (4334128).

Almost surely, 2^30138241 is an apocalyptic number.

It is an amenable number.

30138241 is a deficient number, since it is larger than the sum of its proper divisors (4534783).

30138241 is a wasteful number, since it uses less digits than its factorization.

30138241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28671.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30138241 is about 5489.8306895568. The cubic root of 30138241 is about 311.1997937331.

The spelling of 30138241 in words is "thirty million, one hundred thirty-eight thousand, two hundred forty-one".