30135219 has 4 divisors (see below), whose sum is σ = 40180296. Its totient is φ = 20090144.

The previous prime is 30135211. The next prime is 30135227. The reversal of 30135219 is 91253103.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (30135211) and next prime (30135227).

It is a cyclic number.

It is not a de Polignac number, because 30135219 - 2³ = 30135211 is a prime.

It is a super-2 number, since 2×30135219² = 1816262848355922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30135211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5022534 + ... + 5022539.

It is an arithmetic number, because the mean of its divisors is an integer number (10045074).

Almost surely, 2^30135219 is an apocalyptic number.

30135219 is a deficient number, since it is larger than the sum of its proper divisors (10045077).

30135219 is a wasteful number, since it uses less digits than its factorization.

30135219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10045076.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 30135219 is about 5489.5554464820. Note that the first 3 decimals coincide. The cubic root of 30135219 is about 311.1893919182.

The spelling of 30135219 in words is "thirty million, one hundred thirty-five thousand, two hundred nineteen".