1080194693 has 2 divisors, whose sum is σ = 1080194694. Its totient is φ = 1080194692.

The previous prime is 1080194663. The next prime is 1080194831. The reversal of 1080194693 is 3964910801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 555922084 + 524272609 = 23578^2 + 22897^2 .

It is an emirp because it is prime and its reverse (3964910801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1080194693 - 2¹⁸ = 1079932549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1080194693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1080194663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 540097346 + 540097347.

It is an arithmetic number, because the mean of its divisors is an integer number (540097347).

Almost surely, 2^1080194693 is an apocalyptic number.

It is an amenable number.

1080194693 is a deficient number, since it is larger than the sum of its proper divisors (1).

1080194693 is an equidigital number, since it uses as much as digits as its factorization.

1080194693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 1080194693 is about 32866.3154764875. The cubic root of 1080194693 is about 1026.0472162178.

The spelling of 1080194693 in words is "one billion, eighty million, one hundred ninety-four thousand, six hundred ninety-three".