229947901 has 2 divisors, whose sum is σ = 229947902. Its totient is φ = 229947900.

The previous prime is 229947871. The next prime is 229947929. The reversal of 229947901 is 109749922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226051225 + 3896676 = 15035^2 + 1974^2 .

It is a cyclic number.

It is not a de Polignac number, because 229947901 - 2⁵ = 229947869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229947701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114973950 + 114973951.

It is an arithmetic number, because the mean of its divisors is an integer number (114973951).

Almost surely, 2^229947901 is an apocalyptic number.

It is an amenable number.

229947901 is a deficient number, since it is larger than the sum of its proper divisors (1).

229947901 is an equidigital number, since it uses as much as digits as its factorization.

229947901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 229947901 is about 15164.0331376583. The cubic root of 229947901 is about 612.6463021887.

The spelling of 229947901 in words is "two hundred twenty-nine million, nine hundred forty-seven thousand, nine hundred one".