104143999 has 2 divisors, whose sum is σ = 104144000. Its totient is φ = 104143998.

The previous prime is 104143969. The next prime is 104144003. The reversal of 104143999 is 999341401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104143999 - 2¹³ = 104135807 is a prime.

It is equal to p_5986354 and since 104143999 and 5986354 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104143969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52071999 + 52072000.

It is an arithmetic number, because the mean of its divisors is an integer number (52072000).

Almost surely, 2^104143999 is an apocalyptic number.

104143999 is a deficient number, since it is larger than the sum of its proper divisors (1).

104143999 is an equidigital number, since it uses as much as digits as its factorization.

104143999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 104143999 is about 10205.0967168371. The cubic root of 104143999 is about 470.4838822189.

The spelling of 104143999 in words is "one hundred four million, one hundred forty-three thousand, nine hundred ninety-nine".