228352141 has 4 divisors (see below), whose sum is σ = 228702492. Its totient is φ = 228001792.

The previous prime is 228352139. The next prime is 228352181. The reversal of 228352141 is 141253822.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37332100 + 191020041 = 6110^2 + 13821^2 .

It is a cyclic number.

It is not a de Polignac number, because 228352141 - 2¹ = 228352139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228352181) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 174196 + ... + 175501.

It is an arithmetic number, because the mean of its divisors is an integer number (57175623).

Almost surely, 2^228352141 is an apocalyptic number.

It is an amenable number.

228352141 is a deficient number, since it is larger than the sum of its proper divisors (350351).

228352141 is an equidigital number, since it uses as much as digits as its factorization.

228352141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350350.

The product of its digits is 3840, while the sum is 28.

The square root of 228352141 is about 15111.3249253664. The cubic root of 228352141 is about 611.2258257732.

It can be divided in two parts, 22835 and 2141, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 228352141 in words is "two hundred twenty-eight million, three hundred fifty-two thousand, one hundred forty-one".