30138214 has 4 divisors (see below), whose sum is σ = 45207324. Its totient is φ = 15069106.

The previous prime is 30138197. The next prime is 30138217. The reversal of 30138214 is 41283103.

30138214 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30138217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7534552 + ... + 7534555.

It is an arithmetic number, because the mean of its divisors is an integer number (11301831).

Almost surely, 2^30138214 is an apocalyptic number.

30138214 is a deficient number, since it is larger than the sum of its proper divisors (15069110).

30138214 is a wasteful number, since it uses less digits than its factorization.

30138214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15069109.

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

The square root of 30138214 is about 5489.8282304640. The cubic root of 30138214 is about 311.1997008013.

The spelling of 30138214 in words is "thirty million, one hundred thirty-eight thousand, two hundred fourteen".