229698281 has 2 divisors, whose sum is σ = 229698282. Its totient is φ = 229698280.

The previous prime is 229698199. The next prime is 229698283. The reversal of 229698281 is 182896922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227738281 + 1960000 = 15091^2 + 1400^2 .

It is a cyclic number.

It is not a de Polignac number, because 229698281 - 2¹⁰ = 229697257 is a prime.

It is a super-2 number, since 2×229698281² = 105522600588709922, which contains 22 as substring.

Together with 229698283, 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 (229698283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114849140 + 114849141.

It is an arithmetic number, because the mean of its divisors is an integer number (114849141).

Almost surely, 2^229698281 is an apocalyptic number.

It is an amenable number.

229698281 is a deficient number, since it is larger than the sum of its proper divisors (1).

229698281 is an equidigital number, since it uses as much as digits as its factorization.

229698281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 47.

The square root of 229698281 is about 15155.8002428113. The cubic root of 229698281 is about 612.4245358089.

The spelling of 229698281 in words is "two hundred twenty-nine million, six hundred ninety-eight thousand, two hundred eighty-one".