228333151 has 2 divisors, whose sum is σ = 228333152. Its totient is φ = 228333150.

The previous prime is 228333067. The next prime is 228333221. The reversal of 228333151 is 151333822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228333151 - 2²⁵ = 194778719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228333251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114166575 + 114166576.

It is an arithmetic number, because the mean of its divisors is an integer number (114166576).

Almost surely, 2^228333151 is an apocalyptic number.

228333151 is a deficient number, since it is larger than the sum of its proper divisors (1).

228333151 is an equidigital number, since it uses as much as digits as its factorization.

228333151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 228333151 is about 15110.6965756050. The cubic root of 228333151 is about 611.2088819131.

Adding to 228333151 its reverse (151333822), we get a palindrome (379666973).

It can be divided in two parts, 228333 and 151, that added together give a square (228484 = 478²).

The spelling of 228333151 in words is "two hundred twenty-eight million, three hundred thirty-three thousand, one hundred fifty-one".