228129467 has 2 divisors, whose sum is σ = 228129468. Its totient is φ = 228129466.

The previous prime is 228129449. The next prime is 228129469. The reversal of 228129467 is 764921822.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 228129467 - 2²⁰ = 227080891 is a prime.

Together with 228129469, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (228129469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114064733 + 114064734.

It is an arithmetic number, because the mean of its divisors is an integer number (114064734).

Almost surely, 2^228129467 is an apocalyptic number.

228129467 is a deficient number, since it is larger than the sum of its proper divisors (1).

228129467 is an equidigital number, since it uses as much as digits as its factorization.

228129467 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 228129467 is about 15103.9553428895. The cubic root of 228129467 is about 611.0270854084.

The spelling of 228129467 in words is "two hundred twenty-eight million, one hundred twenty-nine thousand, four hundred sixty-seven".