1095775990 has 32 divisors (see below), whose sum is σ = 2007004320. Its totient is φ = 430665984.

The previous prime is 1095775981. The next prime is 1095775997. The reversal of 1095775990 is 995775901.

It is a happy number.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1095775997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199501 + ... + 204919.

It is an arithmetic number, because the mean of its divisors is an integer number (62718885).

Almost surely, 2^1095775990 is an apocalyptic number.

1095775990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1095775990 is a deficient number, since it is larger than the sum of its proper divisors (911228330).

1095775990 is a wasteful number, since it uses less digits than its factorization.

1095775990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5776.

The product of its (nonzero) digits is 893025, while the sum is 52.

The square root of 1095775990 is about 33102.5073068491. The cubic root of 1095775990 is about 1030.9570988673.

The spelling of 1095775990 in words is "one billion, ninety-five million, seven hundred seventy-five thousand, nine hundred ninety".