194940351 has 10 divisors (see below), whose sum is σ = 291207312. Its totient is φ = 129960180.

The previous prime is 194940337. The next prime is 194940353. The reversal of 194940351 is 153049491.

It is a happy number.

It is not a de Polignac number, because 194940351 - 2⁷ = 194940223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (194940353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1203255 + ... + 1203416.

Almost surely, 2^194940351 is an apocalyptic number.

194940351 is a deficient number, since it is larger than the sum of its proper divisors (96266961).

194940351 is an equidigital number, since it uses as much as digits as its factorization.

194940351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406683 (or 2406674 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 194940351 is about 13962.1041036085. The cubic root of 194940351 is about 579.8298658735.

The spelling of 194940351 in words is "one hundred ninety-four million, nine hundred forty thousand, three hundred fifty-one".