228814969 has 2 divisors, whose sum is σ = 228814970. Its totient is φ = 228814968.

The previous prime is 228814933. The next prime is 228814987. The reversal of 228814969 is 969418822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130804969 + 98010000 = 11437^2 + 9900^2 .

It is a cyclic number.

It is not a de Polignac number, because 228814969 - 2²¹ = 226717817 is a prime.

It is a super-2 number, since 2×228814969² = 104712580076941922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (228814769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114407484 + 114407485.

It is an arithmetic number, because the mean of its divisors is an integer number (114407485).

Almost surely, 2^228814969 is an apocalyptic number.

It is an amenable number.

228814969 is a deficient number, since it is larger than the sum of its proper divisors (1).

228814969 is an equidigital number, since it uses as much as digits as its factorization.

228814969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 49.

The square root of 228814969 is about 15126.6311186596. The cubic root of 228814969 is about 611.6384947275.

The spelling of 228814969 in words is "two hundred twenty-eight million, eight hundred fourteen thousand, nine hundred sixty-nine".