194808469 has 2 divisors, whose sum is σ = 194808470. Its totient is φ = 194808468.

The previous prime is 194808461. The next prime is 194808479. The reversal of 194808469 is 964808491.

194808469 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., 160351569 + 34456900 = 12663^2 + 5870^2 .

It is an emirp because it is prime and its reverse (964808491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 194808469 - 2³ = 194808461 is a prime.

It is a super-2 number, since 2×194808469² = 75900679188247922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (194808461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97404234 + 97404235.

It is an arithmetic number, because the mean of its divisors is an integer number (97404235).

Almost surely, 2^194808469 is an apocalyptic number.

It is an amenable number.

194808469 is a deficient number, since it is larger than the sum of its proper divisors (1).

194808469 is an equidigital number, since it uses as much as digits as its factorization.

194808469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 49.

The square root of 194808469 is about 13957.3804490671. The cubic root of 194808469 is about 579.6990799299.

The spelling of 194808469 in words is "one hundred ninety-four million, eight hundred eight thousand, four hundred sixty-nine".