1091392853 has 2 divisors, whose sum is σ = 1091392854. Its totient is φ = 1091392852.

The previous prime is 1091392829. The next prime is 1091392859. The reversal of 1091392853 is 3582931901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700025764 + 391367089 = 26458^2 + 19783^2 .

It is a cyclic number.

It is not a de Polignac number, because 1091392853 - 2¹⁴ = 1091376469 is a prime.

It is a super-2 number, since 2×1091392853² = 2382276719158959218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1091392853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1091392859) 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, 545696426 + 545696427.

It is an arithmetic number, because the mean of its divisors is an integer number (545696427).

Almost surely, 2^1091392853 is an apocalyptic number.

It is an amenable number.

1091392853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1091392853 is an equidigital number, since it uses as much as digits as its factorization.

1091392853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 41.

The square root of 1091392853 is about 33036.2354544219. The cubic root of 1091392853 is about 1029.5806421162.

The spelling of 1091392853 in words is "one billion, ninety-one million, three hundred ninety-two thousand, eight hundred fifty-three".