1073145839 has 2 divisors, whose sum is σ = 1073145840. Its totient is φ = 1073145838.

The previous prime is 1073145811. The next prime is 1073145881. The reversal of 1073145839 is 9385413701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1073145839 - 2²⁰ = 1072097263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1073145796 and 1073145805.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1073145889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 536572919 + 536572920.

It is an arithmetic number, because the mean of its divisors is an integer number (536572920).

Almost surely, 2^1073145839 is an apocalyptic number.

1073145839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1073145839 is an equidigital number, since it uses as much as digits as its factorization.

1073145839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1073145839 is about 32758.9047283330. The cubic root of 1073145839 is about 1023.8105064068.

The spelling of 1073145839 in words is "one billion, seventy-three million, one hundred forty-five thousand, eight hundred thirty-nine".