1108394641 has 2 divisors, whose sum is σ = 1108394642. Its totient is φ = 1108394640.

The previous prime is 1108394627. The next prime is 1108394669. The reversal of 1108394641 is 1464938011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1009968400 + 98426241 = 31780^2 + 9921^2 .

It is a cyclic number.

It is not a de Polignac number, because 1108394641 - 2⁹ = 1108394129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1108394641.

It is not a weakly prime, because it can be changed into another prime (1108394741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554197320 + 554197321.

It is an arithmetic number, because the mean of its divisors is an integer number (554197321).

Almost surely, 2^1108394641 is an apocalyptic number.

It is an amenable number.

1108394641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108394641 is an equidigital number, since it uses as much as digits as its factorization.

1108394641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1108394641 is about 33292.5613463428. The cubic root of 1108394641 is about 1034.8994094248.

The spelling of 1108394641 in words is "one billion, one hundred eight million, three hundred ninety-four thousand, six hundred forty-one".