229965513949 has 2 divisors, whose sum is σ = 229965513950. Its totient is φ = 229965513948.

The previous prime is 229965513863. The next prime is 229965513959. The reversal of 229965513949 is 949315569922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 177114722500 + 52850791449 = 420850^2 + 229893^2 .

It is a cyclic number.

It is not a de Polignac number, because 229965513949 - 2³¹ = 227818030301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229965513959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114982756974 + 114982756975.

It is an arithmetic number, because the mean of its divisors is an integer number (114982756975).

Almost surely, 2^229965513949 is an apocalyptic number.

It is an amenable number.

229965513949 is a deficient number, since it is larger than the sum of its proper divisors (1).

229965513949 is an equidigital number, since it uses as much as digits as its factorization.

229965513949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47239200, while the sum is 64.

The spelling of 229965513949 in words is "two hundred twenty-nine billion, nine hundred sixty-five million, five hundred thirteen thousand, nine hundred forty-nine".