194965369 has 3 divisors (see below), whose sum is σ = 194979333. Its totient is φ = 194951406.

The previous prime is 194965349. The next prime is 194965391. The reversal of 194965369 is 963569491.

The square root of 194965369 is 13963.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 963569491 = 547 ⋅1761553.

It is not a de Polignac number, because 194965369 - 2⁷ = 194965241 is a prime.

It is a super-2 number, since 2×194965369² = 76022990218612322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194965349) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 6982 + ... + 20944.

It is an arithmetic number, because the mean of its divisors is an integer number (64993111).

Almost surely, 2^194965369 is an apocalyptic number.

194965369 is the 13963-rd square number.

194965369 is the 6982-nd centered octagonal number.

It is an amenable number.

194965369 is a deficient number, since it is larger than the sum of its proper divisors (13964).

194965369 is an frugal number, since it uses more digits than its factorization.

194965369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27926 (or 13963 counting only the distinct ones).

The product of its digits is 1574640, while the sum is 52.

The cubic root of 194965369 is about 579.8546692950.

The spelling of 194965369 in words is "one hundred ninety-four million, nine hundred sixty-five thousand, three hundred sixty-nine".