228016131 has 32 divisors (see below), whose sum is σ = 369907200. Its totient is φ = 122031360.

The previous prime is 228016099. The next prime is 228016141. The reversal of 228016131 is 131610822.

It is not a de Polignac number, because 228016131 - 2⁵ = 228016099 is a prime.

It is a super-2 number, since 2×228016131² = 103982711992418322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (228016141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32301 + ... + 38721.

It is an arithmetic number, because the mean of its divisors is an integer number (11559600).

Almost surely, 2^228016131 is an apocalyptic number.

228016131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

228016131 is a deficient number, since it is larger than the sum of its proper divisors (141891069).

228016131 is a wasteful number, since it uses less digits than its factorization.

228016131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 228016131 is about 15100.2030118803. The cubic root of 228016131 is about 610.9258814181.

Adding to 228016131 its reverse (131610822), we get a palindrome (359626953).

The spelling of 228016131 in words is "two hundred twenty-eight million, sixteen thousand, one hundred thirty-one".