1095521797 has 4 divisors (see below), whose sum is σ = 1096473100. Its totient is φ = 1094570496.

The previous prime is 1095521773. The next prime is 1095521807. The reversal of 1095521797 is 7971255901.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 664917796 + 430604001 = 25786^2 + 20751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1095521797 - 2¹¹ = 1095519749 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1095521767) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 473922 + ... + 476227.

It is an arithmetic number, because the mean of its divisors is an integer number (274118275).

Almost surely, 2^1095521797 is an apocalyptic number.

It is an amenable number.

1095521797 is a deficient number, since it is larger than the sum of its proper divisors (951303).

1095521797 is an equidigital number, since it uses as much as digits as its factorization.

1095521797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951302.

The product of its (nonzero) digits is 198450, while the sum is 46.

The square root of 1095521797 is about 33098.6676015818. The cubic root of 1095521797 is about 1030.8773738302.

The spelling of 1095521797 in words is "one billion, ninety-five million, five hundred twenty-one thousand, seven hundred ninety-seven".