1661092 has 6 divisors (see below), whose sum is σ = 2906918. Its totient is φ = 830544.

The previous prime is 1661069. The next prime is 1661111. The reversal of 1661092 is 2901661.

It can be written as a sum of positive squares in only one way, i.e., 876096 + 784996 = 936^2 + 886^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207633 + ... + 207640.

2^1661092 is an apocalyptic number.

It is an amenable number.

1661092 is a deficient number, since it is larger than the sum of its proper divisors (1245826).

1661092 is a wasteful number, since it uses less digits than its factorization.

1661092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415277 (or 415275 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1661092 is about 1288.8335811888. The cubic root of 1661092 is about 118.4307725286.

The spelling of 1661092 in words is "one million, six hundred sixty-one thousand, ninety-two".