228145130 has 8 divisors (see below), whose sum is σ = 410661252. Its totient is φ = 91258048.

The previous prime is 228145123. The next prime is 228145187. The reversal of 228145130 is 31541822.

It can be written as a sum of positive squares in 2 ways, for example, as 228100609 + 44521 = 15103^2 + 211^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 228145130.

It is an unprimeable number.

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, 11407247 + ... + 11407266.

Almost surely, 2^228145130 is an apocalyptic number.

228145130 is a deficient number, since it is larger than the sum of its proper divisors (182516122).

228145130 is a wasteful number, since it uses less digits than its factorization.

228145130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22814520.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 228145130 is about 15104.4738405547. The cubic root of 228145130 is about 611.0410691320.

Adding to 228145130 its reverse (31541822), we get a palindrome (259686952).

The spelling of 228145130 in words is "two hundred twenty-eight million, one hundred forty-five thousand, one hundred thirty".