1161906 has 16 divisors (see below), whose sum is σ = 2337984. Its totient is φ = 384944.

The previous prime is 1161893. The next prime is 1161929. The reversal of 1161906 is 6091611.

It is a Curzon number.

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, 691 + ... + 1673.

It is an arithmetic number, because the mean of its divisors is an integer number (146124).

2^1161906 is an apocalyptic number.

1161906 is an abundant number, since it is smaller than the sum of its proper divisors (1176078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161906 is a wasteful number, since it uses less digits than its factorization.

1161906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 1161906 is about 1077.9174365414. The cubic root of 1161906 is about 105.1292738819.

The spelling of 1161906 in words is "one million, one hundred sixty-one thousand, nine hundred six".