1043278138 has 8 divisors (see below), whose sum is σ = 1788476832. Its totient is φ = 447119196.

The previous prime is 1043278121. The next prime is 1043278147. The reversal of 1043278138 is 8318723401.

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

It is a junction number, because it is equal to n+sod(n) for n = 1043278097 and 1043278106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37259920 + ... + 37259947.

It is an arithmetic number, because the mean of its divisors is an integer number (223559604).

Almost surely, 2^1043278138 is an apocalyptic number.

1043278138 is a deficient number, since it is larger than the sum of its proper divisors (745198694).

1043278138 is an equidigital number, since it uses as much as digits as its factorization.

1043278138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74519876.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 1043278138 is about 32299.8163771870. The cubic root of 1043278138 is about 1014.2227989560. Note that the first 3 decimals are identical.

The spelling of 1043278138 in words is "one billion, forty-three million, two hundred seventy-eight thousand, one hundred thirty-eight".