194216475 has 12 divisors (see below), whose sum is σ = 321104696. Its totient is φ = 103582080.

The previous prime is 194216459. The next prime is 194216557. The reversal of 194216475 is 574612491.

It is not a de Polignac number, because 194216475 - 2⁴ = 194216459 is a prime.

It is a super-2 number, since 2×194216475² = 75440078322851250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1294702 + ... + 1294851.

Almost surely, 2^194216475 is an apocalyptic number.

194216475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

194216475 is a deficient number, since it is larger than the sum of its proper divisors (126888221).

194216475 is a wasteful number, since it uses less digits than its factorization.

194216475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589566 (or 2589561 counting only the distinct ones).

The product of its digits is 60480, while the sum is 39.

The square root of 194216475 is about 13936.1571101936. The cubic root of 194216475 is about 579.1112776479. Note that the first 3 decimals are identical.

The spelling of 194216475 in words is "one hundred ninety-four million, two hundred sixteen thousand, four hundred seventy-five".