228010129 has 4 divisors (see below), whose sum is σ = 228043060. Its totient is φ = 227977200.

The previous prime is 228010121. The next prime is 228010147. The reversal of 228010129 is 921010822.

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 213744400 + 14265729 = 14620^2 + 3777^2 .

It is a cyclic number.

It is not a de Polignac number, because 228010129 - 2³ = 228010121 is a prime.

It is a super-4 number, since 4×228010129⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228010121) 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, 1614 + ... + 21415.

It is an arithmetic number, because the mean of its divisors is an integer number (57010765).

Almost surely, 2^228010129 is an apocalyptic number.

It is an amenable number.

228010129 is a deficient number, since it is larger than the sum of its proper divisors (32931).

228010129 is an equidigital number, since it uses as much as digits as its factorization.

228010129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32930.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 228010129 is about 15100.0042715226. The cubic root of 228010129 is about 610.9205209651.

The spelling of 228010129 in words is "two hundred twenty-eight million, ten thousand, one hundred twenty-nine".