194195929 has 4 divisors (see below), whose sum is σ = 194504320. Its totient is φ = 193887540.

The previous prime is 194195921. The next prime is 194195951. The reversal of 194195929 is 929591491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 194195929 - 2³ = 194195921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194195921) 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, 153249 + ... + 154510.

It is an arithmetic number, because the mean of its divisors is an integer number (48626080).

Almost surely, 2^194195929 is an apocalyptic number.

It is an amenable number.

194195929 is a deficient number, since it is larger than the sum of its proper divisors (308391).

194195929 is an equidigital number, since it uses as much as digits as its factorization.

194195929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308390.

The product of its digits is 262440, while the sum is 49.

The square root of 194195929 is about 13935.4199434391. The cubic root of 194195929 is about 579.0908556936.

The spelling of 194195929 in words is "one hundred ninety-four million, one hundred ninety-five thousand, nine hundred twenty-nine".