30138285 has 8 divisors (see below), whose sum is σ = 48221280. Its totient is φ = 16073744.

The previous prime is 30138281. The next prime is 30138289. The reversal of 30138285 is 58283103.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30138281) and next prime (30138289).

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

It is a cyclic number.

It is not a de Polignac number, because 30138285 - 2² = 30138281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30138281) 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, 1004595 + ... + 1004624.

It is an arithmetic number, because the mean of its divisors is an integer number (6027660).

Almost surely, 2^30138285 is an apocalyptic number.

It is an amenable number.

30138285 is a deficient number, since it is larger than the sum of its proper divisors (18082995).

30138285 is a wasteful number, since it uses less digits than its factorization.

30138285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2009227.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 30138285 is about 5489.8346969649. The cubic root of 30138285 is about 311.1999451772.

The spelling of 30138285 in words is "thirty million, one hundred thirty-eight thousand, two hundred eighty-five".