229105397 has 2 divisors, whose sum is σ = 229105398. Its totient is φ = 229105396.

The previous prime is 229105381. The next prime is 229105421. The reversal of 229105397 is 793501922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131767441 + 97337956 = 11479^2 + 9866^2 .

It is a cyclic number.

It is not a de Polignac number, because 229105397 - 2⁴ = 229105381 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229105397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229125397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114552698 + 114552699.

It is an arithmetic number, because the mean of its divisors is an integer number (114552699).

Almost surely, 2^229105397 is an apocalyptic number.

It is an amenable number.

229105397 is a deficient number, since it is larger than the sum of its proper divisors (1).

229105397 is an equidigital number, since it uses as much as digits as its factorization.

229105397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 229105397 is about 15136.2279647209. The cubic root of 229105397 is about 611.8971634706.

The spelling of 229105397 in words is "two hundred twenty-nine million, one hundred five thousand, three hundred ninety-seven".