104168381 has 4 divisors (see below), whose sum is σ = 104207100. Its totient is φ = 104129664.

The previous prime is 104168347. The next prime is 104168387. The reversal of 104168381 is 183861401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73188025 + 30980356 = 8555^2 + 5566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104168381 is a prime.

It is a super-2 number, since 2×104168381² = 21702103200322322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104168387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14996 + ... + 20813.

It is an arithmetic number, because the mean of its divisors is an integer number (26051775).

Almost surely, 2^104168381 is an apocalyptic number.

It is an amenable number.

104168381 is a deficient number, since it is larger than the sum of its proper divisors (38719).

104168381 is an equidigital number, since it uses as much as digits as its factorization.

104168381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38718.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 104168381 is about 10206.2912460893. The cubic root of 104168381 is about 470.5205956254.

The spelling of 104168381 in words is "one hundred four million, one hundred sixty-eight thousand, three hundred eighty-one".