1073078243 has 4 divisors (see below), whose sum is σ = 1073171640. Its totient is φ = 1072984848.

The previous prime is 1073078221. The next prime is 1073078249. The reversal of 1073078243 is 3428703701.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1073078243 - 2⁸ = 1073077987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1073078249) 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, 26573 + ... + 53406.

It is an arithmetic number, because the mean of its divisors is an integer number (268292910).

Almost surely, 2^1073078243 is an apocalyptic number.

1073078243 is a deficient number, since it is larger than the sum of its proper divisors (93397).

1073078243 is an equidigital number, since it uses as much as digits as its factorization.

1073078243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93396.

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 1073078243 is about 32757.8729926105. The cubic root of 1073078243 is about 1023.7890098106.

The spelling of 1073078243 in words is "one billion, seventy-three million, seventy-eight thousand, two hundred forty-three".