194381 has 8 divisors (see below), whose sum is σ = 217728. Its totient is φ = 172000.

The previous prime is 194377. The next prime is 194413. The reversal of 194381 is 183491.

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

It is a cyclic number.

It is not a de Polignac number, because 194381 - 2² = 194377 is a prime.

It is a super-2 number, since 2×194381² = 75567946322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 194381.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 194381.

It is not an unprimeable number, because it can be changed into a prime (194371) 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, 236 + ... + 666.

It is an arithmetic number, because the mean of its divisors is an integer number (27216).

2¹⁹⁴³⁸¹ is an apocalyptic number.

194381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

194381 is a deficient number, since it is larger than the sum of its proper divisors (23347).

194381 is a wasteful number, since it uses less digits than its factorization.

194381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483.

The product of its digits is 864, while the sum is 26.

The square root of 194381 is about 440.8866067369. The cubic root of 194381 is about 57.9274757414.

It can be divided in two parts, 194 and 381, that added together give a palindrome (575).

The spelling of 194381 in words is "one hundred ninety-four thousand, three hundred eighty-one".