204369457 has 2 divisors, whose sum is σ = 204369458. Its totient is φ = 204369456.

The previous prime is 204369439. The next prime is 204369479. The reversal of 204369457 is 754963402.

It is a happy number.

204369457 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., 153660816 + 50708641 = 12396^2 + 7121^2 .

It is a cyclic number.

It is not a de Polignac number, because 204369457 - 2¹¹ = 204367409 is a prime.

It is not a weakly prime, because it can be changed into another prime (204369857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102184728 + 102184729.

It is an arithmetic number, because the mean of its divisors is an integer number (102184729).

Almost surely, 2^204369457 is an apocalyptic number.

It is an amenable number.

204369457 is a deficient number, since it is larger than the sum of its proper divisors (1).

204369457 is an equidigital number, since it uses as much as digits as its factorization.

204369457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 204369457 is about 14295.7845884722. The cubic root of 204369457 is about 589.0316942714.

The spelling of 204369457 in words is "two hundred four million, three hundred sixty-nine thousand, four hundred fifty-seven".