228751 has 2 divisors, whose sum is σ = 228752. Its totient is φ = 228750.

The previous prime is 228737. The next prime is 228757. The reversal of 228751 is 157822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228751 - 2¹³ = 220559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228757) 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 as a sum of consecutive naturals, namely, 114375 + 114376.

It is an arithmetic number, because the mean of its divisors is an integer number (114376).

2²²⁸⁷⁵¹ is an apocalyptic number.

228751 is a deficient number, since it is larger than the sum of its proper divisors (1).

228751 is an equidigital number, since it uses as much as digits as its factorization.

228751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1120, while the sum is 25.

The square root of 228751 is about 478.2792071583. The cubic root of 228751 is about 61.1581491537.

It can be divided in two parts, 228 and 751, that added together give a palindrome (979).

The spelling of 228751 in words is "two hundred twenty-eight thousand, seven hundred fifty-one".