104193913 has 2 divisors, whose sum is σ = 104193914. Its totient is φ = 104193912.

The previous prime is 104193899. The next prime is 104193937. The reversal of 104193913 is 319391401.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79512889 + 24681024 = 8917^2 + 4968^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-104193913 is a prime.

It is not a weakly prime, because it can be changed into another prime (104193953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52096956 + 52096957.

It is an arithmetic number, because the mean of its divisors is an integer number (52096957).

Almost surely, 2^104193913 is an apocalyptic number.

It is an amenable number.

104193913 is a deficient number, since it is larger than the sum of its proper divisors (1).

104193913 is an equidigital number, since it uses as much as digits as its factorization.

104193913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 104193913 is about 10207.5419666049. The cubic root of 104193913 is about 470.5590345144.

The spelling of 104193913 in words is "one hundred four million, one hundred ninety-three thousand, nine hundred thirteen".