1012873493 has 2 divisors, whose sum is σ = 1012873494. Its totient is φ = 1012873492.

The previous prime is 1012873441. The next prime is 1012873523. The reversal of 1012873493 is 3943782101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 545362609 + 467510884 = 23353^2 + 21622^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1012873493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012873423) by changing a digit.

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 as a sum of consecutive naturals, namely, 506436746 + 506436747.

It is an arithmetic number, because the mean of its divisors is an integer number (506436747).

Almost surely, 2^1012873493 is an apocalyptic number.

It is an amenable number.

1012873493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012873493 is an equidigital number, since it uses as much as digits as its factorization.

1012873493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1012873493 is about 31825.6734885532. The cubic root of 1012873493 is about 1004.2728808188.

The spelling of 1012873493 in words is "one billion, twelve million, eight hundred seventy-three thousand, four hundred ninety-three".