1091364193 has 2 divisors, whose sum is σ = 1091364194. Its totient is φ = 1091364192.

The previous prime is 1091364151. The next prime is 1091364271. The reversal of 1091364193 is 3914631901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081554769 + 9809424 = 32887^2 + 3132^2 .

It is a cyclic number.

It is not a de Polignac number, because 1091364193 - 2¹³ = 1091356001 is a prime.

It is not a weakly prime, because it can be changed into another prime (1091364133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545682096 + 545682097.

It is an arithmetic number, because the mean of its divisors is an integer number (545682097).

Almost surely, 2^1091364193 is an apocalyptic number.

It is an amenable number.

1091364193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091364193 is an equidigital number, since it uses as much as digits as its factorization.

1091364193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 1091364193 is about 33035.8016854442. The cubic root of 1091364193 is about 1029.5716297673.

The spelling of 1091364193 in words is "one billion, ninety-one million, three hundred sixty-four thousand, one hundred ninety-three".