30136215 has 16 divisors (see below), whose sum is σ = 48398688. Its totient is φ = 16012416.

The previous prime is 30136213. The next prime is 30136217. The reversal of 30136215 is 51263103.

It is an interprime number because it is at equal distance from previous prime (30136213) and next prime (30136217).

It is not a de Polignac number, because 30136215 - 2¹ = 30136213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30136191 and 30136200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30136213) 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 in 15 ways as a sum of consecutive naturals, for example, 529 + ... + 7781.

It is an arithmetic number, because the mean of its divisors is an integer number (3024918).

Almost surely, 2^30136215 is an apocalyptic number.

30136215 is a deficient number, since it is larger than the sum of its proper divisors (18262473).

30136215 is a wasteful number, since it uses less digits than its factorization.

30136215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7538.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 30136215 is about 5489.6461634608. The cubic root of 30136215 is about 311.1928202569.

Adding to 30136215 its reverse (51263103), we get a palindrome (81399318).

The spelling of 30136215 in words is "thirty million, one hundred thirty-six thousand, two hundred fifteen".