228621559 has 8 divisors (see below), whose sum is σ = 249879168. Its totient is φ = 208231680.

The previous prime is 228621553. The next prime is 228621571. The reversal of 228621559 is 955126822.

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

It is a cyclic number.

It is not a de Polignac number, because 228621559 - 2⁵ = 228621527 is a prime.

It is a super-3 number, since 3×228621559³ (a number of 26 digits) contains 333 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 (228621553) 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 7 ways as a sum of consecutive naturals, for example, 216382 + ... + 217435.

It is an arithmetic number, because the mean of its divisors is an integer number (31234896).

Almost surely, 2^228621559 is an apocalyptic number.

228621559 is a deficient number, since it is larger than the sum of its proper divisors (21257609).

228621559 is a wasteful number, since it uses less digits than its factorization.

228621559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433865.

The product of its digits is 86400, while the sum is 40.

The square root of 228621559 is about 15120.2367375647. The cubic root of 228621559 is about 611.4661133075.

The spelling of 228621559 in words is "two hundred twenty-eight million, six hundred twenty-one thousand, five hundred fifty-nine".