194413331 has 6 divisors (see below), whose sum is σ = 226154340. Its totient is φ = 166639956.

The previous prime is 194413321. The next prime is 194413333. The reversal of 194413331 is 133314491.

It is not a de Polignac number, because 194413331 - 2²² = 190219027 is a prime.

It is a super-2 number, since 2×194413331² = 75593086541031122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 194413294 and 194413303.

It is not an unprimeable number, because it can be changed into a prime (194413333) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 1983761 + ... + 1983858.

It is an arithmetic number, because the mean of its divisors is an integer number (37692390).

Almost surely, 2^194413331 is an apocalyptic number.

194413331 is a deficient number, since it is larger than the sum of its proper divisors (31741009).

194413331 is an equidigital number, since it uses as much as digits as its factorization.

194413331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967633 (or 3967626 counting only the distinct ones).

The product of its digits is 3888, while the sum is 29.

The square root of 194413331 is about 13943.2181005677. The cubic root of 194413331 is about 579.3068721675.

The spelling of 194413331 in words is "one hundred ninety-four million, four hundred thirteen thousand, three hundred thirty-one".