194196905 has 32 divisors (see below), whose sum is σ = 283011840. Its totient is φ = 125072640.

The previous prime is 194196829. The next prime is 194196913. The reversal of 194196905 is 509691491.

It is not a de Polignac number, because 194196905 - 2⁸ = 194196649 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34970 + ... + 40140.

It is an arithmetic number, because the mean of its divisors is an integer number (8844120).

Almost surely, 2^194196905 is an apocalyptic number.

It is an amenable number.

194196905 is a deficient number, since it is larger than the sum of its proper divisors (88814935).

194196905 is a wasteful number, since it uses less digits than its factorization.

194196905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5249.

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 194196905 is about 13935.4549620743. The cubic root of 194196905 is about 579.0918258336.

The spelling of 194196905 in words is "one hundred ninety-four million, one hundred ninety-six thousand, nine hundred five".