194413019 has 8 divisors (see below), whose sum is σ = 199702272. Its totient is φ = 189158760.

The previous prime is 194412991. The next prime is 194413031. The reversal of 194413019 is 910314491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-194413019 is a prime.

It is a super-2 number, since 2×194413019² = 75592843913388722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (194413049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2714 + ... + 19904.

It is an arithmetic number, because the mean of its divisors is an integer number (24962784).

Almost surely, 2^194413019 is an apocalyptic number.

194413019 is a deficient number, since it is larger than the sum of its proper divisors (5289253).

194413019 is a wasteful number, since it uses less digits than its factorization.

194413019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17497.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 194413019 is about 13943.2069123283. The cubic root of 194413019 is about 579.3065622713.

The spelling of 194413019 in words is "one hundred ninety-four million, four hundred thirteen thousand, nineteen".