30018134 has 4 divisors (see below), whose sum is σ = 45027204. Its totient is φ = 15009066.

The previous prime is 30018127. The next prime is 30018167. The reversal of 30018134 is 43181003.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7504532 + ... + 7504535.

It is an arithmetic number, because the mean of its divisors is an integer number (11256801).

Almost surely, 2^30018134 is an apocalyptic number.

30018134 is a deficient number, since it is larger than the sum of its proper divisors (15009070).

30018134 is a wasteful number, since it uses less digits than its factorization.

30018134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15009069.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 30018134 is about 5478.8807251117. The cubic root of 30018134 is about 310.7858452675.

Adding to 30018134 its reverse (43181003), we get a palindrome (73199137).

The spelling of 30018134 in words is "thirty million, eighteen thousand, one hundred thirty-four".