30228151 has 4 divisors (see below), whose sum is σ = 30242872. Its totient is φ = 30213432.

The previous prime is 30228139. The next prime is 30228157. The reversal of 30228151 is 15182203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15182203 = 137 ⋅110819.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30228151 is a prime.

It is a super-2 number, since 2×30228151² = 1827482225757602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30228157) 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 3 ways as a sum of consecutive naturals, for example, 3660 + ... + 8593.

It is an arithmetic number, because the mean of its divisors is an integer number (7560718).

Almost surely, 2^30228151 is an apocalyptic number.

30228151 is a deficient number, since it is larger than the sum of its proper divisors (14721).

30228151 is a wasteful number, since it uses less digits than its factorization.

30228151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14720.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 30228151 is about 5498.0133684814. The cubic root of 30228151 is about 311.5089490871.

The spelling of 30228151 in words is "thirty million, two hundred twenty-eight thousand, one hundred fifty-one".