30115226 has 4 divisors (see below), whose sum is σ = 45172842. Its totient is φ = 15057612.

The previous prime is 30115199. The next prime is 30115237. The reversal of 30115226 is 62251103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62251103 = 1307 ⋅47629.

It can be written as a sum of positive squares in only one way, i.e., 29866225 + 249001 = 5465^2 + 499^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30115198 and 30115207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7528805 + ... + 7528808.

Almost surely, 2^30115226 is an apocalyptic number.

30115226 is a deficient number, since it is larger than the sum of its proper divisors (15057616).

30115226 is a wasteful number, since it uses less digits than its factorization.

30115226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15057615.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 30115226 is about 5487.7341407907. The cubic root of 30115226 is about 311.1205578859.

Adding to 30115226 its reverse (62251103), we get a palindrome (92366329).

The spelling of 30115226 in words is "thirty million, one hundred fifteen thousand, two hundred twenty-six".