1091484937 has 2 divisors, whose sum is σ = 1091484938. Its totient is φ = 1091484936.

The previous prime is 1091484913. The next prime is 1091484959. The reversal of 1091484937 is 7394841901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1042708681 + 48776256 = 32291^2 + 6984^2 .

It is an emirp because it is prime and its reverse (7394841901) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1091484937 is a prime.

It is not a weakly prime, because it can be changed into another prime (1091484137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545742468 + 545742469.

It is an arithmetic number, because the mean of its divisors is an integer number (545742469).

Almost surely, 2^1091484937 is an apocalyptic number.

It is an amenable number.

1091484937 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091484937 is an equidigital number, since it uses as much as digits as its factorization.

1091484937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 1091484937 is about 33037.6291068230. The cubic root of 1091484937 is about 1029.6095975430.

The spelling of 1091484937 in words is "one billion, ninety-one million, four hundred eighty-four thousand, nine hundred thirty-seven".