229940141 has 2 divisors, whose sum is σ = 229940142. Its totient is φ = 229940140.

The previous prime is 229940107. The next prime is 229940189. The reversal of 229940141 is 141049922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181010116 + 48930025 = 13454^2 + 6995^2 .

It is a cyclic number.

It is not a de Polignac number, because 229940141 - 2¹⁰ = 229939117 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 229940098 and 229940107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229940441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114970070 + 114970071.

It is an arithmetic number, because the mean of its divisors is an integer number (114970071).

Almost surely, 2^229940141 is an apocalyptic number.

It is an amenable number.

229940141 is a deficient number, since it is larger than the sum of its proper divisors (1).

229940141 is an equidigital number, since it uses as much as digits as its factorization.

229940141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 229940141 is about 15163.7772668949. Note that the first 3 decimals coincide. The cubic root of 229940141 is about 612.6394104989.

The spelling of 229940141 in words is "two hundred twenty-nine million, nine hundred forty thousand, one hundred forty-one".