1091604355 has 8 divisors (see below), whose sum is σ = 1319487552. Its totient is φ = 866908608.

The previous prime is 1091604347. The next prime is 1091604361. The reversal of 1091604355 is 5534061901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1091604355 - 2³ = 1091604347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1091604355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796107 + ... + 797476.

It is an arithmetic number, because the mean of its divisors is an integer number (164935944).

Almost surely, 2^1091604355 is an apocalyptic number.

1091604355 is a deficient number, since it is larger than the sum of its proper divisors (227883197).

1091604355 is a wasteful number, since it uses less digits than its factorization.

1091604355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593725.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 1091604355 is about 33039.4363602045. The cubic root of 1091604355 is about 1029.6471456058.

The spelling of 1091604355 in words is "one billion, ninety-one million, six hundred four thousand, three hundred fifty-five".