104143778 has 4 divisors (see below), whose sum is σ = 156215670. Its totient is φ = 52071888.

The previous prime is 104143757. The next prime is 104143783. The reversal of 104143778 is 877341401.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 877341401 = 409 ⋅2145089.

It can be written as a sum of positive squares in only one way, i.e., 101263969 + 2879809 = 10063^2 + 1697^2 .

It is a super-2 number, since 2×104143778² = 21691852992226568, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26035943 + ... + 26035946.

Almost surely, 2^104143778 is an apocalyptic number.

104143778 is a deficient number, since it is larger than the sum of its proper divisors (52071892).

104143778 is an equidigital number, since it uses as much as digits as its factorization.

104143778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52071891.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 104143778 is about 10205.0858889085. The cubic root of 104143778 is about 470.4835494201.

The spelling of 104143778 in words is "one hundred four million, one hundred forty-three thousand, seven hundred seventy-eight".