1040981783 has 2 divisors, whose sum is σ = 1040981784. Its totient is φ = 1040981782.

The previous prime is 1040981729. The next prime is 1040981807. The reversal of 1040981783 is 3871890401.

It is a strong prime.

It is an emirp because it is prime and its reverse (3871890401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1040981783 - 2⁸ = 1040981527 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1040981783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1040981713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 520490891 + 520490892.

It is an arithmetic number, because the mean of its divisors is an integer number (520490892).

Almost surely, 2^1040981783 is an apocalyptic number.

1040981783 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040981783 is an equidigital number, since it uses as much as digits as its factorization.

1040981783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 41.

The square root of 1040981783 is about 32264.2493016651. The cubic root of 1040981783 is about 1013.4781185112.

The spelling of 1040981783 in words is "one billion, forty million, nine hundred eighty-one thousand, seven hundred eighty-three".