1171090 has 8 divisors (see below), whose sum is σ = 2107980. Its totient is φ = 468432.

The previous prime is 1171073. The next prime is 1171109. The reversal of 1171090 is 901711.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1125721 + 45369 = 1061^2 + 213^2 .

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

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 3 ways as a sum of consecutive naturals, for example, 58545 + ... + 58564.

2^1171090 is an apocalyptic number.

1171090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1171090 is a deficient number, since it is larger than the sum of its proper divisors (936890).

1171090 is a wasteful number, since it uses less digits than its factorization.

1171090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117116.

The product of its (nonzero) digits is 63, while the sum is 19.

The square root of 1171090 is about 1082.1691180218. The cubic root of 1171090 is about 105.4055367614.

The spelling of 1171090 in words is "one million, one hundred seventy-one thousand, ninety".