1165775090 has 16 divisors (see below), whose sum is σ = 2110121280. Its totient is φ = 463704240.

The previous prime is 1165775053. The next prime is 1165775101. The reversal of 1165775090 is 905775611.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 323846 + ... + 327425.

It is an arithmetic number, because the mean of its divisors is an integer number (131882580).

Almost surely, 2^1165775090 is an apocalyptic number.

1165775090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1165775090 is a deficient number, since it is larger than the sum of its proper divisors (944346190).

1165775090 is a wasteful number, since it uses less digits than its factorization.

1165775090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651457.

The product of its (nonzero) digits is 66150, while the sum is 41.

The square root of 1165775090 is about 34143.4487127472. The cubic root of 1165775090 is about 1052.4583637048.

The spelling of 1165775090 in words is "one billion, one hundred sixty-five million, seven hundred seventy-five thousand, ninety".