194068535 has 4 divisors (see below), whose sum is σ = 232882248. Its totient is φ = 155254824.

The previous prime is 194068531. The next prime is 194068541. The reversal of 194068535 is 535860491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 535860491 = 1637 ⋅327343.

It is a cyclic number.

It is not a de Polignac number, because 194068535 - 2² = 194068531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194068492 and 194068501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194068531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19406849 + ... + 19406858.

It is an arithmetic number, because the mean of its divisors is an integer number (58220562).

Almost surely, 2^194068535 is an apocalyptic number.

194068535 is a deficient number, since it is larger than the sum of its proper divisors (38813713).

194068535 is an equidigital number, since it uses as much as digits as its factorization.

194068535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38813712.

The product of its (nonzero) digits is 129600, while the sum is 41.

The square root of 194068535 is about 13930.8483230563. The cubic root of 194068535 is about 578.9641986647.

The spelling of 194068535 in words is "one hundred ninety-four million, sixty-eight thousand, five hundred thirty-five".