205472369 has 2 divisors, whose sum is σ = 205472370. Its totient is φ = 205472368.

The previous prime is 205472357. The next prime is 205472383. The reversal of 205472369 is 963274502.

205472369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 168688144 + 36784225 = 12988^2 + 6065^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-205472369 is a prime.

It is a super-2 number, since 2×205472369² = 84437788844944322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (205472329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102736184 + 102736185.

It is an arithmetic number, because the mean of its divisors is an integer number (102736185).

Almost surely, 2^205472369 is an apocalyptic number.

It is an amenable number.

205472369 is a deficient number, since it is larger than the sum of its proper divisors (1).

205472369 is an equidigital number, since it uses as much as digits as its factorization.

205472369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 205472369 is about 14334.3074126377. The cubic root of 205472369 is about 590.0893946706.

The spelling of 205472369 in words is "two hundred five million, four hundred seventy-two thousand, three hundred sixty-nine".